JPH03157629A - Camera system capable of automatic bracketing photographing - Google Patents

Abstract

PURPOSE:To improve operability by allowing photographing which is commanded next after inhibiting photographing which is commanded first in the case of commanding either automatic bracketing photographing when the other automatic bracketing photographing is commanded. CONSTITUTION:The system is constituted of a camera controller 500 provided with a 1st operating member 501 which commands 1st automatic bracketing photographing(automatic photographing) and a camera main body 600 to which the controller 500 can be connected. The camera main body 600 is provided with a 2nd operating member 601 which commands 2nd automatic photographing and a photographing means 602 which respectively performs the 1st and the 2nd automatic photographing in response to the commands from both operating members 501 and 601. A control means 700 is provided, which inhibits the 1st photographing and allows the 2nd photographing in the case of commanding the 2nd automatic photographing when the 1st automatic photographing is commanded, and inhibits the 2nd photographing and allows the 1st photographing in the case of commanding the 1st automatic photographing when the 2nd automatic photographing is commanded.

Description

DETAILED DESCRIPTION OF THE INVENTION A. Field of Industrial Application The present invention relates to a camera system comprising a camera body and a camera control device, and relates to a camera system in which an auto-bracketing mode can be commanded in both.

B. Conventional technology Auto bracketing shooting involves taking a predetermined number of shots while changing the exposure step by step by a predetermined correction amount. Configurable cameras are known. In this camera, when a predetermined operating member (second operating member) is operated during the first normal shooting mode, the auto bracketing mode is set.

On the other hand, camera control devices such as control packs that can be attached to the camera body by replacing the back cover of the camera, for example, are known that allow the above-mentioned auto bracketing mode to be set. In this camera control device as well, the auto-bracketing mode is set by operating a predetermined operating member (first operating member), and auto-bracketing photography is performed on the camera body side.

Here, the camera body and the camera control device constitute a camera system.

Problems that C0 invention attempts to solve However, in the conventional camera system mentioned above.

When a camera control device is connected to the camera body.

Regardless of whether or not the auto bracketing mode is set on the camera control device side, it is inconvenient because the auto bracketing mode cannot be set on the camera body side, which is easy to operate.

A technical problem of the present invention is to enable auto bracketing mode to be set on the camera body side when both devices are connected.

00Means to solve problems This will be explained with reference to FIG. 1, which is a complaint correspondence diagram.

The present invention includes a camera control bag [500] having a first operation member 501 for commanding first auto-bracketing photography, and a camera body 600 to which a camera control device 500 can be connected.
A second operation member 6o1° for commanding second auto-bracketing photography and a first operation member 6o1°. Second operating member 5
In response to the command from 01,601, the 1st. The present invention is applied to a camera system comprising a camera body 600 having a photographing means 602 that respectively performs second auto-bracketing photographing.

If a second auto-bracketing shooting is commanded while the first auto-bracketing shooting is being commanded, the first auto-bracketing shooting is prohibited and the second auto-bracketing shooting is
If the first auto-bracketing shooting is commanded while the second auto-bracketing shooting is being commanded, the second auto-bracketing shooting is prohibited and the first auto-bracketing shooting is allowed. A control means 700 is provided that allows auto-flaketing photography, thereby solving the above technical problem.

E0 effect When the second auto-bracketing shooting is commanded while the first auto-bracketing shooting is being commanded, the control means 700 prohibits the first auto-bracketing shooting and starts the second auto-bracketing shooting. keting photography is allowed. Furthermore, if the first auto-bracketing shooting is commanded while the second auto-bracketing shooting is being commanded,
The second auto-bracketing shooting is prohibited and the first auto-bracketing shooting is allowed. Thereby, when the camera body 600 and the camera control device 500 are connected, auto-bracketing photography based on a command from the camera body 600 side becomes possible.

F. Example An embodiment of the present invention will be described with reference to FIGS. 2 to 9.

FIG. 2 shows the overall configuration of the camera system according to the present invention, and the camera body 101 is shown to the left of the broken line in FIG.

Camera control device 201 such as control back is on the right side
The camera control device 201 shown in FIG. It is designed to be electrically connected.

In the camera body 101, the microcomputer 11
0 is supplied with power by a battery 112, and obtains lock pulses necessary for arithmetic processing and timekeeping from a reference oscillation source 114 and an oscillation circuit (built in the microcomputer 110). Reference numeral 116 denotes a lens transmitted light amount detection device that detects the amount of subject light transmitted through a photographic lens (not shown) attached to the camera body 101, and includes a light receiving element such as an SPD,
It consists of an amplifier circuit, an A/D converter, etc., and converts the amount of light transmitted through the lens into a digital signal, which is then sent to the microcomputer 1.
Enter 10.

Reference numeral 118 denotes a well-known open aperture value detection device that detects the open aperture value of the photographing lens, converts the detected open aperture value into a digital signal, and inputs the digital signal to the microcomputer 110. A film sensitivity setting device 120 detects the sensitivity from the DX code of the film loaded in the camera body 101, converts it into a digital signal, and inputs it to the microcomputer 110.

122 is an exposure control device, and a microcomputer 1
The aperture and shutter are driven based on the exposure value calculated by 10. 124 is a film winding device consisting of a motor, sprocket, spool, gear, etc.
In response to a command from the microcomputer 110, the film is wound by one frame.

Reference numeral 126 denotes a release switch that is turned on in conjunction with pressing of a release button (not shown), one end of which is grounded, and the other end connected to input port I of the microcomputer 110. Input port 11□ is.

It is pulled up by a pull-up resistor 128. Turning on the release switch 126 is called a release, and photography starts.

130 is an auto flushing button (hereinafter referred to as BKT button)
This is an auto bracketing setting switch (hereinafter referred to as a BKT switch) that is turned on in conjunction with the depression of 132, and one end is grounded and the other end is connected to the input port IU□ of the microcomputer 110. Input port I is pulled up by a pull-up resistor 134. Here, the BKT button 132 is pressed when setting or canceling the auto bracketing mode of the camera body 101.

The auto bracketing mode is a mode in which a predetermined number of shots are taken while changing the exposure step by step by a predetermined correction amount, so-called auto bracketing shooting.
1 and camera control bag [201.

Here, the camera control device! The auto bracketing shooting performed in the auto bracketing mode set in 201 is called the first auto bracketing shooting, and the auto bracketing shooting performed in the auto bracketing mode set in the camera body 101 is called the second auto bracketing shooting. This is called bracketing photography.

The output port o18 of the microcomputer 110 is connected to the base of an NPN transistor 136 via a resistor 138, the emitter of the transistor 136 is grounded and connected to the contact C□, and the collector is connected to the contact C
Connected to 1.

In addition, the output port OX of the microcomputer 110
Z I 013 + 014 is an NPN transistor 142°146.1 via resistors 144, 148°154.
The emitters of the transistors 142, 146, and 152 are each grounded, and the collectors are connected to the contacts C4°C, , C, respectively.

The input port of the microcomputer 110 □.

114 are connected to contacts C, , C, respectively, and are pulled up by pull-up resistors 140 and 150, respectively. Further, the input port rts is connected to the contact point C.

Reference numeral 156 is a main body set display device that displays that the auto bracketing mode has been set on the camera body 101 side. A is connected to the output port 011 of the microcomputer 110, and the output of the AND gate circuit 158 is input to the input terminal B. AND gate circuit 158
One input terminal of is connected to the output port 011 of the microcomputer 110, and the other input terminal is connected to the output port OX2 of the microcomputer 110. Then, when a high-level signal is input only to input terminal A, the one-body set display device 156 lights up the LED to display the auto bracketing mode setting.

Furthermore, when high level signals are input to both input terminals A and B, the main body set display device 156 blinks the LED and performs auto bracketing shooting in the auto bracketing mode currently set in the camera main body 101. Indicates that it is inside.

Reference numeral 160 denotes a control device set display device that displays that the auto bracketing mode has been set on the camera control bag W2O1 side.1 For example, the display is performed by lighting or blinking an LED in the viewfinder.The input terminal C is connected to the inverter 164. It is connected to the contact C8, that is, the input port I11 of the microcomputer 110, through the input terminal, and the output of the AND gate circuit 162 is input to the input terminal.

One input terminal of the AND gate circuit 162 is connected to the output port 01□ of the microcomputer 110, and the other input terminal is connected to the contact C via the inverter 164.
In other words, the input port I of the microcomputer 110
13.

Then, when a high level signal is input only to input terminal C, the display [1160] lights up the LED to indicate that the auto bracketing mode has been set in the camera control device 1201, and also displays the input terminal C and When both high-level signals are input to D, the LED is blinked to indicate that auto-bracketing photography is in progress in the auto-bracketing mode set by the camera control device 201.

On the other hand, the microcomputer 210 in the camera control device 201 is powered by a battery 212, and the reference oscillation source 21
4 and an oscillation circuit (built in the microcomputer 210) to obtain lock pulses necessary for arithmetic processing and timekeeping.

Reference numeral 218 denotes a set/reset button (hereinafter referred to as S/R button) that is pressed when setting or canceling the auto bracketing mode by the camera control device 201. The set/reset switch (hereinafter referred to as S/R switch) 216 is turned on. One end of the S/R switch 216 is grounded, and the other end is connected to the input port Ill of the microcomputer 210. Also, the input port of the microcomputer 210 2. is pulled up by a pull-up resistor 220.

and S for setting auto bracketing mode.
When the /R button 218 is pressed, the first auto-bracketing shooting is commanded.

Reference numeral 222 denotes a sheet quantity correction switch that is turned on in conjunction with pressing of a sheet quantity correction button (not shown), one end of which is grounded, and the other end connected to the input port F"IZ□ of the microcomputer 210. Input port I. Ha.

It is pulled up by a pull-up resistor 224. This number of shots correction button is pressed when correcting the number of shots in the first auto-bracketing shooting.

Reference numeral 226 denotes a correction step correction switch that is turned on in conjunction with pressing of a correction step correction button (not shown), one end of which is grounded, and the other end connected to the input port L3 of the microcomputer 210.

Input port 123 is pulled up by pull-up resistor 228 . This correction step correction button 226 is
This button is pressed when correcting the correction step (the amount of change when changing the exposure stepwise) in the first auto-bracketing shooting.

230 is a display device, which is composed of a display device such as a liquid crystal or LED, and a drive circuit for driving this display device.
The number of shots and the correction step for auto-bracketing shooting are displayed in accordance with a display signal from the microcomputer 210.

The output port o21 of the microcomputer 210 is connected to the base of an NPN transistor 234 via a resistor 236, the emitter of the transistor 234 is grounded and connected to the contact C1, and the collector is connected to the contact C1.
Connected to 2. In addition, the output port o2□ is connected to the resistor 2
44 to the base of an NPN transistor 242, and the emitter of the transistor 242 is grounded.

The collector is connected to contact CG. Furthermore, input boat I24. I□P I2G# I21 is contact C1
C4, C, , C, respectively, and are pulled up by pull-up resistors 232, 238, 240, and 246, respectively. Further, the output port 0□ is connected to the contact C1.

Reference numeral 248 is a main unit side set display device that displays that the auto bracketing mode has been set in the camera main body 101, and its input terminal is connected to the contact C1 via the inverter 250, that is, the input port 24 of the microcomputer 210. It is connected to the. When a high-level signal is input to this input terminal, the display device 248 displays, for example, an LE disposed on the outer surface of the camera control device 1201.
D is lit to indicate that the auto-flaketing mode has been set on the camera body 101 side.

Reference numeral 252 denotes a set display device that displays that the auto bracketing mode has been set in the camera control device 201, and its input terminal is connected to the output port 0211 of the microcomputer 210. When a high level signal is input to this input terminal, the set display bag [252
For example, the LED placed on the outer surface of the camera control device 201 is turned on to indicate that the auto bracketing mode has been set on the camera control bag [201 side].

Reference numeral 254 denotes a BKT photography display device that displays that auto-flaketing photography is currently being performed in the camera body 101, and its input terminal is .

It is connected via an inverter 256 to contact C1, that is, to input port I2% of microcomputer 210. When a high-level signal is input to this input terminal, the BKT photographing display device 254 lights up, for example, an LED placed on the outer surface of the camera control device 201, and auto-bracketing photographing is performed in the camera body 101. Display that it is.

Here, it is assumed that the auto bracketing mode set on the camera body 101 side is only one type in which the number of shots is "3" and the correction step is "1". on the other hand.

In the auto bracketing mode set on the camera control device 201 side, the number of shots is "r3" and "r5".

Either "7" or "9" can be selected, and the correction step is "rl/3" or "r2/3".

rlJ, rl+1/31, rl+2/3J, r2
It is assumed that one can be selected from J.

Next, signals exchanged between the microcomputers 110 and 210 via the contacts C1 to C0 will be explained.

Camera body 101 and camera control bag! 102, when the BKT button 132 on the camera body 101 side is pressed, the switch 130 is turned on and a second auto-flaketing shooting is commanded. A low level signal is input to the input port I11 of the microcomputer 110. In response to this signal input, the microcomputer 110 sets the auto-flaketing mode and sets the output port 0□□ to a high level.

This turns on the transistor 136, and the input port I14 of the microcomputer 210 on the side of the camera control bag [201] becomes low level. here.

When the output port 011 of the microcomputer 110 becomes high level, the microcomputer 21 outputs the BKT signal (second auto bracketing shooting command).
0 input port L4 going low level will be referred to as input of the BKT signal.

When the BKT signal is output, the input terminal A of the set display device 156 on the camera body 101 side becomes high level.
Display bag [156 is ■, turn on the FD and press the camera body 101
A message will be displayed on the side to indicate that auto-flaketing mode has been set.

Also, by turning on the transistor 136, the camera control device 2
Input port L4 of the microcomputer 210 on the 01 side
becomes a low level, and the input terminal of the set display device 248 on the main body side becomes a high level due to the action of the inverter 250. As a result, the display bag w248 lights up the LED to display that the auto bracketing mode has been set on the camera body 101 side.

Also, when auto bracketing mode is not set on either the camera body 101 or the camera control device 201, the S/R button 2 on the camera control device 201 side
18, the S/R switch 216 is turned on to command the first auto-bracketing photography, and the input port Iit of the microcomputer 210 becomes low level. Along with this, the microcomputer 210 sets the auto bracketing mode and output port 0. □ is a high level. This turns on the transistor 234, and the input port I13 of the microcomputer 110 becomes low level.

Here, the output port 02 of the microcomputer 210
．． When the input port I13 of the microcomputer 110 goes high level, it is called the output of a set signal, and when the input port I13 of the microcomputer 110 goes low level, it is called the input of the set signal.

When the set signal is output, the input terminal of the set display device 252 becomes high level, so the set display device 252
lights up the LED to indicate that the auto bracketing mode has been set on the camera control device 201 side. Furthermore, when the set signal is input, the input terminal C of the control device set display device 160 becomes high level due to the action of the inverter 1640, so that the display bag! 160 lights up an LED to display that the auto bracketing mode has been set on the camera control device 1201 side.

The microcomputer 110 continuously sets output ports ◯ and 2 to a high level from the start to the end of auto-bracketing photography. As the output port 01□ goes high, the transistor 142 turns on, and the input port Ll of the microcomputer 210 goes low.

Here, output port 01 of the microcomputer 110
When □ becomes high level, it is called the output of the photographing signal, and when the input port I is of the microcomputer 210 becomes low level, it is called the input of the photographing signal.

If the above-mentioned BKT signal is output when this photographing signal is output, both input ports A and B of the main body set display device 156 will be at a high level, so the 1 main body set display device 156 will blink the LED. The second bracketing mode is set based on the auto bracketing mode set on the camera body 101.
Displays that auto bracketing shooting is in progress.

Further, if a set signal is input when this photographing signal is output, the control device set display device 1160
Since input terminals C and D of both become high level, the first display device 1160 blinks the LED in the same way as described above and performs the first auto bracketing based on the auto bracketing mode set on the camera control device 201 side. Displays that shooting is in progress.

Furthermore, when the photographing signal is output, the camera control device 201
Since this shooting signal is input to the camera body 101, the BKT shooting display 254 turns on the LED when a high level signal is input to its input terminal, and thereby auto-bracketing shooting is performed in the camera body 101. Display that it is.

Next, according to the time chart in FIG. 3, the camera body 101
Data communication performed between the camera control device 210 and the camera control device 210 will be explained.

In starting data communication with the microcomputer 210, the microcomputer 110 uses the output port o1.
．． is set to a high level (time T1 in FIG. 3). This is called the output of a communication standby signal, and this signal output turns on the transistor 146 to input the input port I of the microcomputer 210.

becomes low level. The microcomputer 210 is
Input port I. When it detects that it has become a low level, it converts the communication data described later into a 5-bit signal and then sets the output port 0□ to a high level (time T).
This is called the output of a communication preparation signal, and this signal output turns on the transistor 242, causing the input port I14 of the microcomputer 110 to go low.

When the microcomputer 110 detects that the input port 114 has become low level, the microcomputer 110 switches the output port 0□,
is set to low level. In addition, the microcomputer 11
0 may be slightly delayed from time T2 (time T,).

Output boat 08. becomes low level, the transistor 146 is turned off, and the microcomputer 210
Input boat 1. becomes high level.

For convenience of arithmetic processing, the microcomputer 110 outputs a synchronization signal (clock signal) with a predetermined period (2T6) to the output port ○□ from time T4, which is slightly later than time T4.For example, in FIG. For the half cycle T0 from to time T6, output port 0□4 is at high level, and for the half cycle T from time T6 to time T, output port ○8
．． is set to low level. That is, in this case, from time 14 to
The period up to time T7 constitutes one cycle.

At time T4, output boat 08. When reaches a high level,
The transistor 152 turns on and the microcomputer 2
No. 10 input port I2□ becomes low level. This is called inputting a synchronization signal. In response to the input of this synchronization signal, the microcomputer 210 outputs the output port 02. The 1st bit data D4 of the 5-bit data is output at (time T). Here, the microcomputer 21
1 from the input of the synchronization signal (time T4) due to the processing of 0.
There is a slight time lag until the bit-th data D is output (time T). And this output data is the contact point C
input port r of the microcomputer 110 via 6
It is input to ts.

After outputting the first bit of data D1, the microcomputer 110 outputs the data at time T6, after a time T0 has elapsed from time T4.
sets output port o14 to low level and reads data D input to input port 11%,
When the output port 014 becomes low level, the transistor 152 is turned off and the input port IZ1 of the microcomputer 210 becomes high level.

The microcomputer 110 determines when a period of time T has elapsed from time TG, that is, from time T, one cycle (2
The output port 014 is set to a high level at time T7, when time T, ) has elapsed. Accordingly, the transistor 152 is turned on, and the input port Lt of the microcomputer 210 becomes low level. When the microcomputer 210 detects that the input port I27 is at a low level, it stops outputting the data D8 from the output port 02□, and then outputs the second bit of data D2.

Thereafter, data is exchanged in the same manner, and the microcomputer 210 finally outputs the 5th bit data D from the output port 0□1 for a predetermined period from the time Tut, and then outputs the data at the 1 time point T. Stop. Then, for convenience of processing, the output port 022 is set to a low level at a time T2°, which is slightly later than the time T□. When the output port o2□ of the microcomputer 210 becomes low level, the transistor 242 is turned off, and the microcomputer 110
The input port I□ becomes high level at time T2°.

The above is the content of data communication performed between the camera body 101 and the camera control device 201.

Next, the data to be communicated will be explained in detail based on FIG.

FIG. 4(a) shows the number of bits of communication data and the corresponding bit data.
It shows the data of the bit.

Among these, the 1st and 2nd bit data D, .
As shown in FIG. 4(b), D indicates the number of shots M in auto flagging shooting, for example, =O,
If D,=O, then M=3, and so the number of bits and the number of captured images M (M=3.5, 7°9) are associated in advance. Also, data D from the 3rd bit to the 5th bit
3 to D are correction steps Y as shown in FIG. 4(c).
For example, if =D, =D, =O, then Y = 1/
3, the number of bits and the correction step Y are associated in advance.

Next, the control procedure by the microcomputer 110 on the camera body 101 side will be explained based on the flowcharts of FIGS. 5 to 7.

When the battery 112 is loaded into the camera body 101, the program shown in FIG. 5 is started, and the microcomputer 110 first assigns "0" to the body set flag and the control device set flag J in step 5LOL. Here, rOJ or "1" is assigned to the body set flag (■), and in this embodiment, when "1" is assigned to this body set flag I, the camera body 101 is
It is defined that the auto flagging mode has been set, and it is defined that the auto flagging mode has been canceled when "0" is assigned. On the other hand, the control device set flag J indicates that the camera control device 201
When the auto flagging mode is set, "1" is assigned, and when it is released, "0" is assigned.

Next, in step 5102, the counting counter n is set to "1". The value of the counting counter n indicates the number of shooting times when auto bracketing shooting is performed, and this indicates whether auto bracketing shooting is in progress or not. This is used to determine whether or not the exposure is correct and to calculate the amount of exposure correction in auto bracketing photography.

Processing then proceeds to step 5103, where input port I
Depending on whether 13 is low level or high level, the camera control bag [
It is determined whether the set signal is input from the 1201 side. Input port■1. If it is at a low level, it is determined that a set signal has been input, and the process proceeds to step 8181, where the control device set flag J is set to "1" and the process proceeds to step 8182. Here, the fact that the set signal is input means that the auto bracketing mode is set in the camera control bag M2O1. Then, in response to the input of the set signal, the control device set display device 160 lights up the LED and as described above, the control device set display device 160 lights up the camera control bag [2].
01 indicates that the auto bracketing mode has been set.

In step 8182, it is determined whether the 1 body set flag I is "1" or not, and if it is "O", step 510 described later
7, and if it is [1], proceed to step 8183. In step 8183, the main unit set flag is set to ``0'', and then in step 8184, the output port 01□ is set to low level, and the output of the BKT signal is stopped. 5107
Proceed to.

Since the input terminal A becomes low level due to the stop of the BKT signal, the main body set display device 156 switches the LED from lighting to turning off. Further, in the camera control device 11201, the main unit side set display device 248 receives the low level veil signal, so the LED is turned off.

In steps 5103, 5181 to 5184 above, the auto bracketing mode is set on the camera control bag w201 side, and when a set signal is input on the camera body 101, the auto bracketing mode set on the camera body 101 is canceled. shows.

On the other hand, if it is determined in step 5103 that the input port I□ is at a high level, it is determined that the set signal is not input, and the process proceeds to step 5104. Here, it is determined that the set signal is not input. This means that the auto bracketing mode is not set on the camera control device 201 side. In step 8104, it is determined whether the control device set flag J is "1" or not. As rOJ, the process proceeds to step 5107. In step 5107, it is determined whether the BKT switch 130 is on or not, that is, whether the BKT button 132 is pressed, depending on whether the input port 1.1 is at a low level or a high level. If the input port Lx is at a high level, it is determined that the switch 130 is off, that is, the BKT button 132 is not pressed, and the process proceeds to step 8118. If the input port Lx is at a low level, the switch 130 is on, that is, the BKT button 13 is not pressed.
2 is pressed and the process proceeds to step 5108. In step 8108, the control device set flag J is set to [0
” and the process advances to step 5109.

In step 5109, it is determined whether the counting counter n is "1" or not. If it is "1", it is determined that auto bracketing shooting is not in progress and the process proceeds to step 5112; if it is not "1", auto bracketing shooting is in progress. The process then proceeds to step 5110. Here, auto-bracketing photography is in progress from the time when the first auto-bracketing photography is performed until the last photography is completed.

In step 5ilo, the output port 01□ is set to a low level and the output of the photographing signal (outputted in step 5135, which will be described later) is stopped. As a result, input terminals B and D become low level, so the main body set, display device 156, or control device set display device 1160 switches the LED from blinking to lighting. Furthermore, due to the stop of the output of the photographing signal, a low level signal is input to the BKT photographing display device 254 on the side of the camera control device E201, so the first display device 1254 proceeds to step 5111 to turn off its LED.
The counting counter n is set to "1", auto bracketing shooting is interrupted, and the process proceeds to step 5112. Here, if step 5109 is negative after step 5107 is affirmed, this means that BK is not set during auto bracketing shooting.
This means that the T button 132 was pressed.

In step 5112, it is determined whether the main body set flag is "0", and if "OJ", it is set to "1" in step 5113, and then in step 5114, the output port 0
1□ is set to high level and a BKT signal is output, and the process proceeds to step 5115. By outputting this BKT signal, the 1 body set display device 156 lights up the LED. Also, ko(
7) Camera control device W2O by output of BKT signal
Since a high level signal is input to the main body side set display device 248 of No. 1, the display device Ii 248 turns on the LED.

In step 5115, the number of shots N, which is a condition for auto bracketing shooting, is set to "3", and the correction step X is set to "3".
1'' and the process proceeds to step 8118.

In other words, as described above, the auto bracketing mode set on the camera body side 101 is set when the number of shots is "3".
, there is only one type of correction step of "1".

On the other hand, in step 5112, the main body set flag I is "1".
If it is determined that this is the case, it is set to "0" in step 8116, the output port o1□ is set to low level in step 5117, and the output of the BKT signal is stopped, and then, in step 81
Proceed to step 18. When this BKT signal stops, the 1 body set display device 156 turns off the LED, and the main body side set display device 248 on the camera control device 201 side turns off the LED because the low level signal is input. .

That is, according to the above procedure, when the auto bracketing mode is set in the camera control device 201 and a set signal is input, the auto bracketing mode set on the camera body 101 side is canceled, and the auto bracketing mode is set in the camera body 101. If the BKT button 132 is pressed when the bracketing mode is not set, the auto bracketing mode is set on the camera body 101 side, and when the auto bracketing mode is set on the camera body 101 side (auto bracketing shooting When the BKT button 132 is pressed while the BKT button 132 is pressed (including when the BKT button is in the middle), the auto bracketing mode is canceled.

In addition, when shooting with auto bracketing.

The counting counter n becomes "1" and the auto-fluttering photography is interrupted.

Next, in step 8118, the main body set flag I is set to “
If it is “0”, step 511
If the control device set flag J is “1”, the process proceeds to step 5130.
If it is not "1", that is, rOJ, it is determined that the auto bracketing mode is not set in either the camera body 101 or the camera control device 201, and the process proceeds to step 5120.

Steps 5120-3126 show the procedure for normal photography without auto-bracketing photography.

First, in step 5120, it is determined whether the counting counter n is "1" or not. If it is "1", it is determined that auto bracketing shooting is not in progress, and the process proceeds to step 5123, where [1]
”, it is determined that auto bracketing shooting is in progress and the process proceeds to step 5121. In step 5121,
The output port Oxx is set to low level and the output of the photographing signal is stopped, and the process proceeds to step 5122.By stopping the output of the photographing signal, a low level signal is input to the BKT photographing display device 254 on the camera control device 201 side. The display w254 turns off the LED.

In addition, since the input terminal becomes low level due to the stop of the output of the photographing signal, the control device set display device 160 turns on the LED.
If it was blinking, it will switch to lit.

In step 5122, the counting counter n is set to "1" to interrupt auto-bracketing shooting, and then in step 5
In step 123, an exposure value calculation is performed to obtain a proper exposure, that is, the film sensitivity set by the film sensitivity setting device 120, the amount of lens transmitted light detected by the lens transmitted light amount detection device 116, and the open aperture value detection bag are calculated. The exposure value is calculated from the maximum aperture value of the photographic lens detected in w118.

The Apex method is used to calculate this exposure value.

The exposure value EV for obtaining proper exposure is determined from the subject brightness BV and the film sensitivity SV as follows: EV=BV+SV-= (1).

On the other hand, if the maximum aperture value of the photographic lens is AV, then the amount of light transmitted through the lens is BV - AV. Because I'm yelling.

The exposure value EV for obtaining proper exposure is the amount of light transmitted through the lens (
BV-AV,), film sensitivity SV, open aperture value AV,
Therefore, EV=(BV-AV.)+SV+AV. −(2').

Next, in step 5124, a shutter speed TV and aperture value AV that satisfy the exposure value EV calculated in step 5123 are calculated according to the exposure control mode. Hereinafter, the shutter speed TV and the aperture value AV will be collectively referred to as an exposure control factor, and there is a difference between these and the exposure value EV.

EV=TV+AV ・ (3)
holds true.

Next, in step 5125, it is determined whether the release switch 126 is on based on the state of the input port Izz. If the input port Ixa is at a high level, it is determined that the release switch 126 is off and the process returns to step 5103, and if the input port Ixa is at a low level, the switch 1 is
26 is determined to be on, the process proceeds to the release routine of step 8126, and then returns to step 5103.

FIG. 6 shows the details of this release routine. First, in step 5141, a control signal is output to the exposure control device 122. Thereby, the exposure control device 122 drives the shutter and aperture to take a picture based on the exposure control factors (shutter speed TV and aperture value AV) determined in step 5124 described above or step 5131 described later. Then, a film winding signal is output to the film winding bag [124], the film is wound by one frame, and the process returns to the process shown in FIG.

On the other hand, if it is determined in step 5119 of FIG. 5 that J=1, then the camera control group! It is determined that the auto bracketing mode is set on the 201 side, and the process proceeds to step 512.
Proceed to communication routine A in step 7.

FIG. 7 shows the details of the communication routine A in step 5127. In FIG. In step 5153, the output port O is set to high level and output of a communication standby signal is started, and then in step 5154
camera control device 20 depending on the state of input port I 14.
1 is in the communication ready state.

If the input port IL4 is at the low level, it is determined that the communication preparation is completed, and the process proceeds to step 5160, where the output ports O, .

In step 8161, the time measurement started in step 5151 is stopped, and in step 8162, the clock time is reset to "0", and in step 8163, the value of the bit data counter L is reset to "OJ".
Proceed to 164. This bit data counter indicates which bit of the above-mentioned 5-bit communication data is to be input.

In step 8164, time measurement of time t is started, and in step 8165, the focus data counter L is incremented by "1", and the process proceeds to step 8166, where output port 014 is set to high level and output of the synchronization signal is started. At step 8167, it is determined whether the elapsed time from step 8164, that is, the measured time t, is equal to or greater than 10 half cycles as explained in FIG. If step 5167 is negative, this step remains until it is positive, and if it is positive, the process proceeds to step 8168.

In step 8168, the output port 014 is set to low level to stop outputting the synchronization signal, and then in step 816
9, the L-th bit data is input to port I2. , and memorize it, and proceed to step S170.In step 5170, it is determined whether or not the measured time t is equal to or longer than the period (2T0).

If the answer is negative, the process remains at step 5170 until the answer is affirmative, and if the answer is yes, the process proceeds to step S step 5171.

In step 5171, the measurement of time t is stopped, and in step 5172, the clock is reset to rOJ, and the process proceeds to step 5173. In step 5173, it is determined whether or not the bit data counter I is "5", r54
If not, the process returns to step 8164 and the above-described process is repeated, and if it is not "5", the process proceeds to step 5174. In step 5174, the fourth bit is extracted from the input 5-bit data.
The number M of photographed images and the correction step Y are decoded based on the tables shown in FIGS. 5(b) and 5(e), and then the process returns to the process shown in FIG.

On the other hand, if it is determined in step 5154 that the input port E□ is at a high level, it is determined that the camera control device 201 is not ready for communication, and the process proceeds to step 5155. It is determined whether the predetermined time T or more has elapsed. Here, this predetermined time T
is set to a longer time than the time from when the communication standby signal is output until communication preparations are completed on the camera control device 201 side.

If it is determined in step 5155 that the clock time is less than the predetermined time 1, it is determined that the camera control device 201 side is not ready for communication, and the process returns to step 5154, and the clock time is determined to be greater than or equal to the predetermined time T. Then, it is determined that the camera control device 201 is not operating properly or that the camera control device I201 has been removed from the camera body 101, and the process proceeds to step 8156.

In step 8156, output port 01□ is set to low level to stop outputting the communication standby signal, and then in step 5
At step 157, the time measurement of time t is stopped, and at the same time, step 8
In step 158, the clocked time t is reset to rOJ, and in step 5159, the control device set flag J is reset to "0", and the process returns to the process shown in FIG.

In step 8128 of FIG. 5, it is determined whether the control device set flag J is "1" or not.
”, the process returns to step 5102. Here, in step 8128, the control device set flag J is set to [
o'' is determined when the camera control device 201 is not operating correctly in the communication routine of step 5127 or when the camera control device 201 is removed from the camera body 101.

If the control device set flag J is determined to be "1" in step 8128, the process advances to step 5129.

The value of the number of photographed images M received and decoded in the communication routine of step 5127 and the value of the correction step Y are substituted into the number of photographed images N and the correction step X, respectively.

Next, in step 5130, an exposure correction amount is calculated.

That is, the exposure correction amount ΔEV is obtained by using the number of photographed images N and the correction step X.

Next, in step 5131, exposure calculation is performed, that is,
The exposure value EV for obtaining proper exposure is calculated from the above equation (2), so the value (EV + Δ
EV) is calculated.

Step 5132 then includes step 5124 described above.
Similarly, the exposure control factors (shutter speed TV and aperture value AV) are calculated based on the calculated exposure value (EV+ΔEV), and the process proceeds to step 5133.

In step 5133, similarly to step 5125 described above, it is determined whether the release switch 126 is on or not at the input port I. Determine from the state of. And release switch 1
If 26 is off, the process returns to step 8103, and if it is on, it is determined in step 5134 whether or not the counter n is "1". If it is [1], the process advances to step 5135 to start auto-flaketing photography, and if it is not '1', it is determined that auto-flaketing photography is already in progress and the process directly advances to step 8136.

In step 5135, the output port 0.2 is set to high level and a photographing signal is output, and the process then proceeds to step 5136. By outputting this photographing signal, the camera control device 20
The BKT photography display device 254 on the 1 side turns on the LED, and the camera control group on the camera body 101 side! 2o1
Either one of the nine body set display device 1156 and the control device set display device w160 blinks an LED depending on which side is performing auto bracketing photography in the set auto bracketing mode.

In step 8136, a release routine similar to that described in FIG. 6 is executed, and then in step 5137, the counting counter n and the number of shots N are compared. And n
If ≠N, it is determined that auto-bracketing photography has not yet been completed, and the process proceeds to step 8138, increments the counter n by rlJ, and returns to step 5130. On the other hand, if it is determined in step 5137 that n=N, it is determined that auto bracketing shooting has ended, and step 51
39, the output port 01□ is set to low level, that is, the output of the photographing signal is stopped, and the process returns to step 5102.

1 body set display [115
6 input terminal B or control device set display device! 16
Since one of the input terminals 0 goes from high level to low level, one of these display devices 156 and 160 switches the LED from blinking to lighting, and the other one switches the LED from blinking to lighting.
D The light remains off. On the other hand, when the output of the photographing signal is stopped, the BKT photographing display device 254 on the camera control device 201 side turns off the LED.

The above is the microcomputer 110 of the camera body 101.
This is the control procedure.

According to this procedure, when the auto bracketing mode is not set on the camera body 101 side, the BKT
When the button 132 is pressed, auto-bracketing mode is set on the camera body 101 side, and then second auto-bracketing photography is performed. In other words, first
The second release (release switch 126 on) causes the photograph to be underexposed by rl/3J from the proper exposure EV, the second release gives the proper exposure, and the third release causes the photograph to be underexposed by "1/3" below the proper exposure EV. A total of three shots are taken with overexposure.

Additionally, if auto bracketing is set on the camera control device 201 side after auto bracketing is set on the camera body 101 side, a set signal is input to the camera body 101, so the auto bracketing mode set on the camera body 101 side is changed. It will be canceled.

Next, based on FIGS. 8 and 9, the camera control device 1
The control procedure by the microcomputer 210 on the 201 side will be explained.

When the battery 212 is loaded into the camera control device 201, the eighth
The program shown in the figure is started, and first, in step 5201, an initial reset is performed, that is, the set flag K is set to "0".
In addition, the number of photographed images M is set to "3", and the correction step Y is set to rl/3J. Here, "o" or "1" is assigned to the set flag, and when "1" is assigned, it is defined that the auto bracketing mode has been set on the camera control device 201 side, and "0" is assigned. It is defined that this auto bracketing mode has been canceled.

Next, the process advances to step 5202, and it is determined based on the state of input port L4 whether the BKT signal is being input. If the input port I24 is at a low level, it is determined that the BKT signal is being input, and the process proceeds to step 8301.Here, the fact that the BKT signal is being input means that the auto bracketing mode is set in the camera body 101. This means that Then, upon input of the BKT signal, the main body side set display device 248 turns on the LED.

In step 3301, it is determined whether or not the set flag K is "1", that is, whether the auto bracketing mode is set on the camera control device 201 side. If negative, the process advances to step 5203; if affirmative, step 53
At 02, set the set flag to [0] and set the camera control device 2.
01 is canceled, the output of the set signal is stopped in step 5303, and the process proceeds to step 5203. By stopping the output of the set signal, the set display device 252 of the camera control device 201 turns off the LED, and the camera body 101 control device set display device 16
0 turns off the LED.

On the other hand, if it is determined in step 5202 that the input port I24 is at a high level, it is determined that the BKT signal is not input, that is, the auto bracketing mode is not set on the camera body 101 side, and step 5202 is performed.
Proceed to step 3.

In step 5203, it is determined based on the state of the input port I21 whether the S/R switch 216 is on, that is, whether the S/R button 218 is pressed. If the input port I2□ is at a low level, it is determined that the S/R button 218 has been pressed, and the process proceeds to step 5204, where it is determined whether the set flag K is "0". If "O", it is determined that the auto bracketing mode is not set on the camera control device 201 side, and the process proceeds to step 5205, where the set flag K is set to "1", that is, the camera control bag [2
Set the auto bracketing mode on the 01 side. Next, in step 8206, output port 02□ is set to high level, that is, a set signal is output, and the process proceeds to step 5209. By outputting this set signal, the set display bag W25 is set.
Since a high level signal is input to the display device 25
2 turns on the LED. Further, when a set signal is input to the control device set display device 160 on the camera body 101 side, a high level signal is input to the input terminal C of the display device 160, thereby lighting up the LED.

On the other hand, if it is determined in step 5204 that the set flag K is not "0", that is, it is "1", then the camera control device! It is determined that the auto bracketing mode has been set on the et201 side, and the process proceeds to step 5207, where the set flag K is set to "0".

In other words, 0 to cancel the auto bracketing mode mentioned above.
Next, in step 8208, the output port Ofl 1 is set to low level, the output of the set signal is stopped, and the process proceeds to step 52.
Proceeding to step 09, by stopping this set signal, a low level signal is input to the set display device 252, and
Since a low level signal is input to the input terminal C of the control device set display device 160 on the camera body 101 side, each of the display devices 252 and 160 turns off the LEDs.

If it is determined in step 5203 that the input port ■2□ is at a high level, it is determined that the S/R button 218 is not pressed and the process proceeds to step 5209.

In step 5209, it is determined from the state of the input port □ whether a photographing signal is being input.

Input port■. is at a high level, it is determined that the photographing signal is not input, and the process proceeds to step 5210. It is determined whether the number correction switch 222 is on or off based on the state. Input port I2
If □ is at a high level, it is determined that the switch 222 is off, and the process proceeds to step 5214. If the input port Lx is at a low level, it is determined that the switch 222 is on, that is, the number of sheets is to be corrected, and the process proceeds to step 5211.

In step 5211, it is determined whether the number M of photographed images is "9". If it is "9", the number of shots M is set to "3" in step 5212, and the process proceeds to step 5214.
Otherwise, in step 5213, the number M of photographed images is incremented by "2" and the process proceeds to step 5214.

In step 5214, it is determined whether the correction step modification switch 226 is on or off based on the state of the input port L3. If input port I23 is at high level, switch 22
6 is off, the process proceeds to step 5218, and if the input port I23 is at low level, the switch 226 is turned on.
In other words, it is determined that the correction step is corrected, and step 5215 is performed.
Proceed to.

In Stellar P 5215, it is determined whether the correction step Y is "2" or not. If it is "2", the correction step Y is set to rl/3J in step 8216, and if it is not "2", the correction step Y is incremented by rl/3J in step 5217, and the process proceeds to step 8218.

According to the above steps 8209 to 5217, each time the number of shots correction switch 222 is turned on, the number of shots M in auto bracketing shooting changes from "3" to "5" to "7".
→ "9" → "3"... and each time the correction step correction switch 226 is turned on, the correction step Y
changes as r 1/3 J → r2/3 J..., and i
When the switch 226 is turned on when & is also large "2", the correction step Y returns to IN/3J.

On the other hand, if it is determined in step 5209 that the input port Its is at a low level, it is determined that a photographing signal is input, and the process proceeds to step 8218. Here, the fact that a photographing signal is being input means that auto-flaketing photographing is being performed on the camera body 101 side, and by inputting this photographing signal, a high-level signal is displayed on the BKT photographing display device 254. Since the signal is input, the display device 254 is LE
Turn on D. And in this case, 5209-521
The correction process for the number of sheets and correction step No. 7 is skipped. In other words, the number of shots and the correction step cannot be changed during auto-flaketing shooting.

In step 8218, a display signal for displaying the number of shots M and the correction step Y that were set immediately before this step is output to the display device 230, and step 521
Proceed to communication routine B in step 9.

By inputting this display signal, the display device 230 displays the number of shots M and the correction step Y on an unillustrated display (liquid crystal or LED).
(consisting of).

FIG. 9 shows details of communication routine B in step 5219.

In FIG. 9, first, in step 5221, the input port L
From the state s, it is determined whether the camera body 101 is in a communication standby state. If the input port I26 is at a high level, it is determined that the communication standby state is not established, and the process directly returns to the process of FIG. 8. Here, the fact that the camera body 101 is not in a communication standby state means that the microcomputer 110 is not outputting a communication standby signal, that is, the auto bracketing mode is not set on the camera control device 201 side, and the auto bracketing mode is not set. This indicates that the data at the time of shooting is not needed.

In step 5221, input port I2! If it is determined that the level is low level, it is determined that the communication standby state is established and the process proceeds to step 5222.
Then, the number M of photographed images and the value of the correction step Y are converted and encoded into 5-bit data D-D from the 1st bit to the 5th bit shown in FIG. 4(a). Next, in step 5223, the output port 022 is set to high level to start outputting a communication preparation completion signal, and the process proceeds to step 5224.

In step 5224, the value of the bit data counter H is reset to [0], and in step 5225, the synchronization signal (camera body 101
output from the side microcomputer 110) is being input. Input port I2. If the input port I2□ is at a high level, it is determined that a synchronizing signal has not been input, and the process remains at step 5225 until it is input. If the input port I2□ is at a low level, it is determined that a synchronizing signal has been input, and the process proceeds to step 8226.

In step 8226, the value of bit data counter H is
1'' and then in step 5227 output port 02. Start outputting the H-th bit data. Then, in step 8228, the bit data counter H is set to "5".
” Determine whether or not.

If it is determined that it is not “5”, the process advances to step 5229;
If it is determined that the value is "5", the process advances to step 5231.

In step 5229, input port L? It is determined whether a synchronization signal has been input from the state of input port Ii7.
If the input port Lt is at a high level, it is determined that a synchronizing signal is not input, and the process remains in step 5229. If the input port Lt is at a low level, it is determined that a synchronizing signal is input, and the process proceeds to step 5230. 5227 to output port 02. The output of the H-th bit data whose output was started is stopped, and the process returns to step 8226.

In step 5231, the clocked time t is reset to rOJ, and in step 5232, the clocking of time t is started, and the process proceeds to step 5233.In step 5233, it is determined whether the clocked time t is equal to or longer than the period (2T,) of the synchronization signal. is determined, and if it is negative, it remains in step 5233 until it is affirmed, and if it is affirmed, it proceeds to step 5234, step 5
In step 234, the output of the 5th bit data is stopped, and then in step 5235, the time measurement is stopped, and in step 82
At step 36, the clocked time t is reset to rOJ, and at step 52
37, in step 5237, the output boat 0□2
is set to low level to stop outputting the communication preparation completion signal and return to the process shown in FIG.

In FIG. 8, after step 5219, step 5
Return to 202.

The above is the control procedure on the camera control bag w201 side. According to this, when the S/R button 218 is pressed when the auto bracketing mode is not set on the camera control device 201, the auto bracketing mode is set on the camera control device 201 side. After that, 1 sheet number correction switch 222. By turning on the correction step correction switch 226, the number of shots M and the correction step Y are corrected, and the corrected data is transmitted to the camera body 101 in communication routine B. This transmitted data is read into the camera body 101 in the above-mentioned communication routine A (FIG. 7), and
Based on the data, first auto-bracketing photography is performed on the camera body 101 side.

Next, auto bracketing mode is set on the camera control device [201 side (J=l on the camera body,
A case will be described in which the BKT button 132 on the camera body 101 side is pressed when I=O and =1 in the camera control device. In this case, step 5107 in FIG. 5 described above is affirmed, and then step 5112 is affirmed, so the body set flag I becomes "1" in step 5113, and the auto bracketing mode is set on the camera body 101 side. be done. Furthermore, since the control device set flag J becomes "0" in step 5108, the auto-flaketing mode set by the camera control device 201 is canceled on the camera body 101 side.

Then, in step 5114, a BKT signal (command for second auto-bracketing shooting) is output, and this is input to the camera control device 201 side, so step 5 in FIG.
202 is affirmed. After that, since step 5301 is affirmed, set flag K is set to rOJ in step 5302.
Then, the auto bracketing mode on the camera control device 201 side is canceled. That is, if the second auto-bracketing shooting is commanded while the first auto-bracketing shooting is commanded, the first auto-bracketing shooting is prohibited and the second auto-bracketing shooting is allowed. .

On the other hand, auto flaketing mode is set on the camera body 101 side (I=1.J=
O, camera control device [=0 in 201) when camera control bag! When the S/R button 218 on the 201 side is pressed, step 5203 in FIG. 8 is affirmed, and then step 5204 is affirmed, so step 520
5, the set flag K becomes "1" and the camera control device 20
Auto bracketing mode is set on the 1st side. Then, in step 8206, a set signal (first auto-bracketing shooting command) is output, and this is sent to the camera body 1.
Since the input is on the 01 side, step 5103 in FIG. 5 is affirmed. Thereafter, since step 8182 is affirmed, the main body set flag (2) is set to "0" in step 8183, and the auto-flaketing mode on the camera main body 101 side is canceled. Also, in step 5181, J
is "1", so at this time, the camera body 101 side determines that the auto bracketing mode has been set in the camera control device 201.

That is, if the first auto-bracketing shooting is commanded while the second auto-bracketing shooting is commanded, the second auto-bracketing shooting is prohibited and the first auto-bracketing shooting is allowed. It turns out.

In the configuration of the above embodiment, the S/R button 218 and the
The /R switch 216 controls the first operation member 501 from the BKT
The button 132 and the BKT switch 130 function as the second operation member 601, the microcomputer 110 and the exposure control device 122 function as the photographing means 602, and the microcomputer 11o.

210 constitute the control means 700, respectively.

In this way, in this embodiment, the microcomputer 110
, 210 constitute the control means 700, and either one of the microcomputers constitutes the control means 700.
Alternatively, the first . The form of the second auto-bracketing photography, that is, the number of images to be taken and the correction steps are also not limited to the embodiment.

G0 Effects of the Invention According to the present invention, in a camera system consisting of a camera body and a camera control device, when auto-bracketing shooting is commanded for one of them and auto-bracketing shooting for the other is commanded, the first The auto bracketing mode is now set not only on the camera control device but also on the camera body, which is easy to operate. This is convenient and does not cause the inconvenience of the control system being unable to determine which side should perform auto-bracketing based on a command.

[Brief explanation of the drawing]

FIG. 1 is a complaint correspondence diagram. Figures 2 to 9 show an embodiment of the present invention, Figure 2 is a block diagram showing the overall configuration of the camera system according to the present invention, and Figure 3 is a timing diagram showing signal levels of each part during data communication. Charts, Figures 4(a) to 4(c) are explanatory diagrams explaining the contents of the data to be communicated, Figures 5 to 7 are flowcharts showing the control procedure on the camera body side, and Figures 8 and 9. is a flowchart showing a control procedure on the camera control device side. 101.600: Camera body 110: Microcomputer 130: BKT switch 132: BKT button 201.
500: Camera control device 210: Microcomputer 216: S/R switch 218: S/R button 50
1: First operating member 601: Second operating member 602: Photographing means 700: Control means 01

Claims (1)

[Scope of Claims] A camera control device having a first operating member for instructing first auto-bracketing photography, and a camera body to which the camera control device can be connected, the camera body instructing second auto-bracketing photography. A camera system comprising: a second operation member for issuing commands; and a camera body having photographing means for performing first and second auto-bracketing photographs, respectively, in response to commands from the first and second operation members. , If the second auto-bracketing shooting is commanded while the first auto-bracketing shooting is commanded, the first auto-bracketing shooting is prohibited and the second auto-bracketing shooting is prohibited.
auto-bracketing photography, and when the second auto-bracketing photography is commanded, the first auto-bracketing photography is allowed.
A camera system capable of auto-bracketing photography, characterized in that it includes a control means that prohibits second auto-bracketing photography and allows first auto-bracketing photography when auto-bracketing photography is commanded. .