JPH03225336A - Autofocus camera with remote control function - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Application of the Invention) The present invention is an improvement in an autofocus camera with a remote control function that can perform depth-of-field priority photography in order to simultaneously focus on multiple subjects located at different distances. It is related to.

(Background of the Invention) Conventionally, cameras have been equipped with a depth-of-field priority (hereinafter simply referred to as depth in the description of the background of the invention and the embodiments described later) shooting function to focus on multiple subjects at different distances. Patent application No. 61-2368 from the applicant
It is proposed in No. 41. This camera has a distance measurement field of view in the center of the screen, and when performing depth photography, the camera is swung toward different subjects to measure the distance of each subject. This allows the amount of defocus for each subject to be calculated. The aperture control is performed to bring each subject into focus, and the exposure operation is started. To be more specific, subjects located at different distances are A and B.
In this case, the photographer first performs a distance measurement operation with subject A in the center of the screen, then performs a distance measurement operation with subject B in the center of the screen, and then both subjects A and B are included in the screen. By performing such operations, the camera first moves to A.
Find the defocus amount of the subject B, drive the lens to the in-focus position, and store this lens position in memory. Next, find the defocus amount of the subject B, drive the lens to the in-focus position, and combine this lens position with the above. The difference information of the memorized lens positions, that is, the amount of defocus of the object B relative to the in-focus position of the object A, is determined, and the lens is moved to, for example, an intermediate position of the defocus amount, and both objects A and B are at the same time. The aperture is controlled so that the camera enters the depth of field and the release operation is started.

When a camera capable of depth photography as described above is provided with a remote control function (hereinafter referred to as a remote control in the description of the background of the invention and the embodiments to be described later), the following problems arise.

In other words, if you try to take a picture with one remote control operation, the subject A remains in focus, and even if you try to take a picture by measuring the distance twice with the remote control, Since the camera is fixed on a tripod or the like at the time of remote control photography, distance measurement is performed on the subject A the first time and also on the subject A the second time, resulting in unintended photography being taken by the photographer.

(Object of the Invention) An object of the present invention is to solve the above-mentioned problems and to prevent depth-of-field priority shooting, which does not allow for proper photography, to be performed during remote control shooting. The purpose of the present invention is to provide an autofocus camera with a remote control function.

(Features of the Invention) In order to achieve the above object, the present invention provides that when remote control photography is instructed, even if depth-of-field priority photography is selected by the selection means, the photography control unit The present invention is characterized in that a prohibition means is provided for prohibiting depth-of-field-prioritizing photography, so that the depth-of-field-prioritizing photography is not performed during remote control photography.

(Embodiments of the Invention) Hereinafter, the present invention will be described in detail based on illustrated embodiments.

FIG. 2 is a block diagram showing an embodiment of the present invention. In FIG. 1, 1 is a camera body, and 50 is a block diagram of the camera body
This is a lens body that is detachably attached to the camera mount 1a and the lens mount 51a. 3 is a mirror, 4 is a pentaprism, 5 is an eyepiece lens, and 6 is a light receiving element for photometry. Reference numeral 7 denotes a photometric calculation circuit, which is connected to a film sensitivity information input circuit 8, a shutter control circuit 9, and a microcomputer 10. 34
is the focal brain shutter, 3a is the mirror rotation axis,
Reference numeral 3b denotes an operating bin, which faces the mirror drive cam 11. 12 is a mirror drive motor, and motor drive circuit 1
Connected to 3. A film feeding motor 14 is used for winding and rewinding the film, and is connected to a motor drive circuit 15. A distance measuring sensor 16 is connected to a distance measuring calculation circuit 17. 18 is the battery that operates the entire camera system, 19 is the main power switch,
20 is a DC/DC converter, which is connected from the battery 18 to the microcomputer 10. 21 is a photometering and distance measuring switch, and 22 is a release switch. Generally, the switches 21 and 22 are two-stage stroke switches, in which the first stroke of the release button turns the switch 21 ON, and the second stroke turns the switch 22 OFF.
It is configured to be N. 41 is a remote control receiving circuit built into the camera, and when the light receiving element 42 receives a remote control signal, the received signal is transmitted to the microcomputer 10.

5WBP is a back cover switch, 5WREW is a rewind switch, and SWFLM is a film operation switch linked to the perforations of the film. Further, SWMODE is a mode changeover switch for changing the photographing mode, and in this embodiment, in order to simplify the explanation, it is assumed that there are two types: program mode and depth mode.

Reference numerals 23a to 23e are a group of contact point bins on the side of the camera body 1, which are arranged near the mount 1a. Reference numerals 52a to 52e are contact bin groups on the lens body 50 side, which are opposed to the contact bin groups 23a to 23e on the camera side.

Gl and G2 are optical lenses for photographing. 53 is a lens drive motor used for focus adjustment, and a lens drive circuit 54
is connected to. As the lens drive motor 53 rotates, the number of pulses is manually input to the counter 57 via the ratchet 60. Note that the counter 57 is set to be incremented when the lens G1 moves in the {circle around (2)} direction. Reference numeral 61 denotes an aperture drive circuit, which is connected to the microcomputer 55 and to a known pulse motor 56, by which the aperture is driven.

Reference numeral 101 denotes a remote control transmitting circuit that outputs a remote control signal to the remote control receiving circuit 41 side through a light projecting element 102.

Next, the operation of the camera having the above configuration will be explained.

First, the operation in a general shooting mode (program mode) will be described. By turning on the main power switch 19 of the camera body 1 and exciting the DC/DC converter 20, the converter 20 supplies the microcomputer 10 with a constant voltage capable of operating. Next, when the photometric and distance measuring switch 21 is pressed, the amount of light detected by the photometric light receiving element 6 is transmitted to the photometric calculation circuit 7, and the exposure amount is stored in a known manner. Furthermore, since the photometering and distance measurement switch 21 also serves as a trigger switch for automatic distance measurement, when the photometer and distance measurement switch 21 is pressed, the distance measurement sensor 16 is activated according to instructions from the microcomputer 10, and In this method, distance measurement calculation (detecting the focus state and calculating the defocus amount) is performed by the distance measurement calculation circuit 17, the amount of lens extension is determined, and the microcomputer 55 on the side of the lens body 5o and a known serial communication takes place,
The direction of rotation of the drive motor 53 is instructed to the lens drive circuit 54, and the photographing optical system G1 is moved. At this time,
At the same time, the contents of the counter 57 are changed by the ratchet 6o in response to the movement of the lens, and the contents of the counter 57 are changed by the ratchet 6o.
5 can detect the amount of movement of the lens by reading the number of pulses, so the photographing optical system (hereinafter simply referred to as lens) Gl is moved according to the amount of movement instructed from the camera body 1 side as described above. The lens G1 is stopped at the focus position. Generally, distance measurement is performed again, and when it is determined that the camera is in focus, an in-focus display is performed on the camera body 1 side or a focus sound is emitted.

Next, the general operation when the depth mode is selected will be explained.

As mentioned above, when the photometry and distance measurement switch 21 is pressed, photometry, distance measurement calculation, and lens drive to the focusing position are performed.In the case of the depth mode, this first autofocus operation (as described above) For example, the amount of movement of the lens G1 obtained by the movement of the subject A on the near point side is stored in memory. Next, turn off the photometering/distance measurement switch 21, swing the camera toward the subject B on the far point side, and press the erroneous photometry/distance measurement switch 21 again to perform the second autofocus operation. The amount of movement of the lens Gl obtained is stored in memory. Next, with both subjects A and B in the shooting screen, press the photometering/distance switch 21 again.
The second autofocus operation is not performed, and the lens Gl is moved to an intermediate position between the first and second movement distances, and when the release switch 22 is pressed from this state, in response to the pressing operation, A known exposure operation is started.

However, when photographing is performed using a remote control signal from the remote control transmitting circuit 101 side, the depth mode is cleared and photographing is performed in a normal program mode, for example.

Next, detailed operation of the camera will be explained using flowcharts shown in FIGS. 1-1, 1-2, and 3 to 6.

The microcomputer 10 includes a film frame number register FRAMER that stores the number of film frames, and a focusing number register C that stores the number of focusing times in depth mode.
NT, a lens drive amount register MOV that stores the amount of movement (drive amount) of the lens Gl, a register DRV that stores the contents of the register, and a count register C0UNT that counts the number of on/off times of the film operation switch SWFLM. Furthermore, the back cover flag BPF (back cover closed when rlJ) is used to store the state of the back cover, the depth mode flag DEPF is stored as "1" when fat mode is selected by the mode selector switch SWMODE, and the remote control signal is stored. The remote control REMF memorizes "1" upon reception and instructs remote control photography, the focus flag JFF stores "1" upon focusing during autofocus operation, and rewinding is performed using the rewind switch 5WREW. It has a rewind flag REWF which stores "l" when it is set or when the film is in a tensioned state.

In the following description of the embodiments, the photometric and distance measuring switch 21 will be referred to as a switch SWI, and the release switch 22 will be referred to as a switch SW2.

Here, the main power switch 19 is turned on and the D C/D
When the C converter 20 is excited, a constant voltage that enables operation is supplied from the converter 20 to the microcomputer 10, and the microcomputer 10 starts operating from step 1 in FIG. 1-1. It is assumed that the back cover is now open and all switches are turned off.

[Step 1] Initialize all flags and registers.

[Step 2] Determine the state of the back cover switch 5WBP. Now that the lid is open, move on to step 3.

[Step 3] Set the film frame number register FRAMER to rOJ.

[Step 4] Clear the back cover flag BPF.

[Step 51: Determine the state of the rewind flag REWF. Here, since the information has been cleared in step 1, the process proceeds to step 6.

[Step 6] Determine whether the depth mode is selected using the mode changeover switch SWMODE. It is assumed here that the program mode is selected. Therefore, proceed to step 7.

[Step 7] Check whether remote control photography is set via the remote control reception circuit 41 using the remote control flag REM.
Discrimination is made in the F state. Here, remote control shooting is not set and rREMF=OJ, so step 8
Proceed to.

[Step 8] Determine the state of switch SWI. Since it is off here, proceed to step 9.

[Step 9] If lens G1 is operating, stop it.

[Step 10] Clear the focus flag JFF.

[Step 11] Waits here until any switch is operated. Here, the input from the remote control receiving circuit 41 is also treated as a switch input.

Here, when the photographer loads the film and closes the back cover, the state of the back cover switch 5WBP changes, so step 1
Proceed from step 1 to step 12.

[Step 12] It is determined whether remote control receiving circuit 41 has instructed remote control photography.

Since no instructions are given here, return to step 2.

After this, the process proceeds from step 2 to step 3, and since the back cover is closed this time, the process proceeds to step 13.

[Step 13] Check the state of the back cover flag BPF.

Since rBPF=OJ is set in step 4, the process proceeds to step 13.

[Step 14] Set the back cover flag BPF to "1".

[Step 15] Here, the film blank feed subroutine shown in FIG. 4 is called to perform a blank feed operation.

Here, this idle feeding operation will be explained using the flowchart shown in FIG.

[Steps 125, 126, and 127] The film winding subroutine shown in FIG. 5, which will be described later, is called three times.

This completes the empty feeding of three frames of film. The process then proceeds to step 128.

[Step 128 Film frame number register FRAME
Set R to "1", that is, set information indicating that it is the first frame.

When the above-mentioned idle feeding operation is completed, the process proceeds to step 5. Thereafter, step 5-6 → 7-8-9-10 → 11 in the same manner as above.
Then, it enters the state where it waits for the switch to change.

At this point, point the photographer at the subject he or she wants to photograph and press the switch S.
When WI is pressed, the process advances to step 11-12-2.

Since the lid is currently closed, the process proceeds from step 2 to step 13 as described above, and here the state of the back lid flag BPF is determined, but the flag BPF was set to "1" in step 14. So now step 1
Proceed to 6.

[Step 16] Determine the state of the rewind switch 5WREW. Since it is off here, proceed to step 5.

In this manner, by using the back cover flag BPF, it is possible to perform a blank feed only once when the back cover is closed.

After this, the process proceeds to step 5-6-7-8, where the state of switch SW1 is determined as described above.
Since the switch SW1 is turned on here, the process now proceeds to step 17.

[Step 17] Here, the autofocus subroutine shown in FIG. 3 is called and autofocus operation is performed, so that the lens G1 is moved to the in-focus position of the subject. Note that details of the autofocus operation will be described later.

When the autofocus operation is completed, the process returns to the main routine again and starts operations from step 18.

[Step 18] Measure the brightness of the subject and calculate the EV value.

[Step 19] Calculate the shutter speed (TV) and aperture value (AV) from the EV value. Since the current shooting mode is the program mode, each value suitable for the mode is determined in a known manner.

[Step 20] Here, the state of the remote control flag REMF is determined, and since rREMF=OJ, the process proceeds to step 21.

[Step 21] Here, the depth mode flag DE
The state of the PF is determined, and since r DEPF=OJ, the process advances to step 22.

[Step 22] Here, the state of the switch SW2 is determined, but since the switch SW2 is off, the process returns to step 2.

In this way, while the switch SWI is pressed, autofocus operation and photometry operation are repeatedly performed. Further, when the switch SWI is turned off, the process proceeds from step 8 to step 9, where the driving of the lens Gl is stopped, and in the next step 10, the focus flag JFF is cleared, and the process proceeds to step 11, where the The system enters a state where it waits for a change in one of the switches.

Next, as described above, when the switch SWI is pressed and the switch SW2 is further pressed, the process proceeds from step 22 to the release sequence starting from step 23 in FIGS. 1-2.

[Step 23] Stop the lens G1 that has been driven by autofocus operation.

[Step 24] The mirror drive motor 12 is energized to start mirror-up operation.

[Step 25] Serial communication is made to the microcomputer 55 on the lens body side 50 to set the aperture according to step 19.
Narrow it down to the value found in .

[Step 26] The process waits for the mirror-up operation started in step 24 to be completed, and upon completion, proceeds to step 27.

[Step 27] Stop energizing the mirror drive motor 12.

[Step 28] The shutter leading curtain is run via the shutter control circuit 9.

[Step 29] Wait for the shirt time obtained in step 19, and when the time ends, step 30
Proceed to.

[Step 30] The shutter trailing curtain is run via the shutter control circuit 9.

[Step 31] Serial communication is made to the microcomputer 55 on the lens body side 50 to open the aperture.

[Step 32] The mirror drive motor 12 is energized to start mirror down and shutter charging.

[Step 33] Wait for shutter charging to be completed, and once completed, proceed to step 34.

[Step 34] Apply a brake to the mirror drive motor 12.

[Step 35] Here, the film winding subroutine shown in FIG. 5 is called to wind, for example, one frame of film.

Here, this film winding operation and the like will be explained using FIG. 5. The operation begins at step 110.

[Step 110] The film frame number and fill read by the DX code reading circuit (not shown) are also stored in the frame number register FR.
The AMER values are compared, and if they are equal, go to 123; if not, go to 11.

[Step 111] The film feeding motor 14 is rotated in the normal direction to start winding the film.

[Step 112] Clear the count register C0UNT.

[Step 113] Set 400 to the film tension timer.
Set m5.

[Step 114] If the timer has completed counting, proceed to step 123; if not, proceed to step 115.

[Step 115] Film operation switch SWFLM
If it is on, the process returns to step 114, and if it is off, the process proceeds to step 116.

Therefore, if the film is being wound and the film operating switch SWFLM is turned from on to off during the 400 m5, the process proceeds to step 116;
If M is on for 400 m5, the process proceeds to step 123.

[Step 116] Set 400 to the film tension timer.
Set m5.

[Step 117] If the timer has completed counting, proceed to step 123; otherwise, proceed to step 118.

[Step 118] Film operation switch SWFLM
If it is off, the process returns to step 117, and if it is on, the process proceeds to step 119.

Steps 116 to 118 are the opposite of steps 113 to 115, and wait for the film operation switch SWFLM to be turned on from off.

[Step 119] Increment count register C0tlNT by "1".

[Step 120] Count register C011NT
It is determined whether the content of has reached "8" or not. If it has reached "8", the process goes to step 121, and if it has not reached it, it returns to step 113. That is, if the film operating switch SWFLM is turned on and off eight times between step 113 and step 120, the process proceeds to step 121.

[Step 121] Since one frame of film has been wound, the brake is applied to the film feeding motor 14.

[Step 122] Film frame number register FRAME
Increase R by "1".

If the film tension or the number of film frames reaches the number of film frames by DX, the process advances to step 123.

[Step 123: Apply a brake to the film feeding motor 14.

[Step 124] Set the rewind flag REWF to "1" and return to the main routine.

When the film rewinding operation is completed, the operation starts again from step 36 in FIG. 1-2.

[Step 36] Determine the state of the rewind flag REWF, and when rREWF=IJ, that is, if one frame of film has not been wound in the film winding operation, return to step 2, and set rREWF=OJ. The process then proceeds to step 38.

First, in step 36, the rewind flag REWF is set.
is "1" and the subsequent operation when the process returns to step 2 will be explained.

In this case, proceed to step 2-13-16-5,
Here, the state of the rewind flag REWF is determined, and in step 36 the rewind flag REWF is set to "
1", the process advances to step 37.

[Step 37] Here, the film rewinding subroutine shown in FIG. 6 is called to start the film rewinding operation.

Here, this film rewinding operation will be explained using FIG. 6. The operation begins at step 130.

[Step 130] The film feeding motor 14 is reversed to start rewinding the film.

[Step 1311 Set the timer to 400 ms.

[Step 132] When the timer completes counting 400 m5, the process proceeds to step 137, and unless the timer completes counting, the process proceeds to step 133.

[Step 133] Film operation switch SWFLM
is off, steps 132 and 133 are repeated, and when the timer does not complete counting 400 m5 and the switch SWFLM is turned on, step 13
Proceed to step 4.

[Step 134] Set the timer to 400m5.

[Step 135] When the timer completes counting of 400 m5, the process proceeds to step 137, and unless the timer completes counting, the process proceeds to step 136.

[Step 136] Film operation switch SWFLM
While OFF, steps 132 and 133 are repeatedly executed. That is, while the film is being rewound,
Since the switch SWFLM is on and off, the loop from step 131 to step 136 is repeatedly executed. When film rewinding is completed, the switch SWFLM
Since the timer 400m5 does not change, the timer 400m5 completes counting 1=, and the process proceeds to step 137.

[Step 137] Since rewinding is complete, the film feeding motor 14 is braked.

[Step 138] Clear the rewind flag REWF.

[Step 139] Step 13 until the back cover is opened
Repeat step 9.

On the other hand, in step 36, the rewind flag REW
If F is "0", the process proceeds from step 36 to step 38 as described above.

[Step 38] Here, wait until switch SW2 is turned off.

[Step 39] Here, the remote control flag REMF is cleared.

[Step 40] Here, the focusing number register CNT is initialized (set to "2").

[Step 41] Here, the depth mode flag DEP
Clear F. Then return to step 2.

Next, the operation when the depth mode is selected by the mode changeover switch Sll1MO[lE will be described.

Assuming that the depth mode is selected by the mode changeover switch SWMODE and the switch SWI is pressed down toward the subject A, step 11-12-2 shown in Figure 1-1
-13-16-5-6, where it is determined whether or not the depth mode is in effect. Since the depth mode is currently selected, the process advances from step 6 to step 42.

[Step 42] Here, the depth mode flag DEP
Set F to "1".

After this, the process proceeds to steps 42→7→8, where the state of the switch SWI is determined, but since the switch SWI is on, the process proceeds to steps 8→17, where the autofocus subroutine is called, Start autofocus operation.

Here, this autofocus operation will be explained using FIG. 3. This operation begins at step 60.

[Step 60] Here) Depth mode flag DE
Determine the state of PF. In step 42, rDEP
Since F=IJ is set, the process advances to step 61.

[Step 61] Determine the state of the focusing number register CNT. Since the initial value of rcNT=2J is set here, the process advances to step 62.

[Step 62] Here, data is accumulated in the distance measuring sensor 16 using a known method.

[Step 63] The value read from the distance measurement sensor 16 is calculated to determine the amount of defocus.

[Step 64] Determine whether or not the subject is in the focus range. If the subject is in the zero focus range, proceed to step 67; otherwise, proceed to step 65.

[Step 65] Serial communication is performed with the microcomputer 55 on the lens body 50 side, and the lens G1 is driven to the in-focus position.

[Step 66] The lens drive amount commanded to the microcomputer 55 on the lens body 50 side is added with a sign (sign indicating whether it is retraction or extension), and this value is stored in the lens drive amount register MOV.

Thereafter, since the camera is currently in an out-of-focus state, the process returns to the main routine, the main routines are sequentially executed, and the autofocus operation is started again in step 17. Then, the process proceeds to steps 60-61-62-63-64 as described above, where it is determined again whether or not the subject is within the in-focus range. As a result, if it is within the in-focus range, the process proceeds to step 67 as described above.

[Step 67] Here, the focus flag BPF is set to "1".
Set.

[Step 68] Determine the state of the depth mode flag DEPF. In step 42, rDEPF=I J
is set, so proceed to step 69 [Step 6
9] Set the value of lens drive amount register MOV to register DR.
Transfer to V.

[Step 70] Clear the lens drive amount register MOv.

[Step 71] Set the value of the focusing number register CNT to "1".
” to subtract. Therefore, once the image is focused, "CNT=IJ".

[Step 72] Here, wait until the switch SW1 is turned off.

This completes the first autofocus operation.

Thereafter, when the switch SWI is turned off, the process returns to the main routine and proceeds to steps 17-18-19-20-21, where the state of the depth mode flag DEPF is determined. Since rDEPF=IJ has been set in step 42, the process then proceeds to step 43.

[Step 43] Here, it is determined whether or not the focusing number register CNT is rOJ. "1" in step 71
is set, so return to step 2.

After this, step 2→13-16→5→6→42-7-
Proceed to step 8, and here the state of switch SWI is determined.
Since the switch SWI is off, step 9→10-
Proceed to 11. Then, it waits for some switch change, in this case the second turn on of the switch SWI.

The photographer turns the switch SWI again toward the subject B.
When the pressing operation is performed, step 11-2-13-1
Proceed as 6-5 → 6-42-7-8, and here switch S
Since W1 is on, the process proceeds to step 17, autofocus operation. Then, the autofocus operation shown in FIG. 3 is performed again, and when the focus is achieved, steps 64→67→68-
The process proceeds to step 69, where the value of the lens drive amount register MOV, which stores the lens drive amount from the first autofocus position, is transferred to the register DRV, and the process further proceeds to step 70-71-72.

This completes the second autofocus operation.

Thereafter, when the switch SW1 is turned off, the process returns to the main routine, and the operation proceeds from step 17, and in step 11, it waits for some switch change, in this case, the third time the switch SW1 is turned on.

When the photographer shakes the camera so that both subjects A and B enter the photographic screen and presses the switch SW1 again, steps 11-2-13→16-5-6
-42-7-8-17. The process then proceeds to the autofocus subroutine again.

Upon entering the autofocus subroutine, step 6o
-61, and here it is determined whether or not the number of focusing CNT is "0". However, since rcNT=OJ was set in step 71, this time, no autofocus operation is performed and step 73 Proceed to.

[Step 73: Find half the amount of lens drive twice. In other words, the value of the register DRV is found to be 1/2.

[Step 74] Here, the value of DRV/2 is serially communicated as the lens drive amount to the microcomputer 55 on the lens body 50 side, and the lens G1 is driven by the value in the opposite direction from the second time.

[Step 75] Clear the register DRV and return to the main routine.

After this, the process proceeds to steps 17 → 18 → 19, and here, as is well known, the aperture value is set so that both subjects A and B are within the depth of field, and the shutter speed is set so that the exposure is appropriate. Correct. And further step 20-21 → 4
The process proceeds to step 3, where it is determined whether or not the number of times of focusing CNT is "0". However, since rcNT=OJ is set in step 71, the process proceeds to step 22, that is, switch SW2 is turned on. The main routine will be repeated until the main routine is reached.

When the photographer turns on the switch SW2, the process proceeds to the release sequence and depth photography is executed as described above.

In step 40.41, the focusing number register CNT and the depth mode flag DEPF are initialized in preparation for another depth photographing.

Next, an explanation will be given of the operation when remote control photography is further instructed while the depth mode is selected.

In step 11, while waiting for a change in some switch, a remote control signal is transmitted from the remote control transmitting circuit 101 via the light projecting element 102, and the remote control receiving circuit 41 sends the remote control signal to the microcomputer 10 via the light receiving element 42 for remote control photography. is transmitted, step 12
Since remote control photography is now being instructed, the process advances to step 44.

[Step 44] Here, the remote control flag REMF is set to "1" and the process returns to step 2.

Thereafter, the process proceeds to steps 2→13-16→5→6→42-7, and here the state of the remote control flag REMF is determined. Since rREMF=IJ has been set in step 44, the process then proceeds to step 45.

[Step 45] Here, the depth mode flag DEP
Clear F to "0".

Therefore, no matter how many depth modes are selected,
If remote control shooting is also instructed at the same time, the shooting mode will be forcibly switched to program mode.

After this, the process proceeds to step 45-17, where the autofocus subroutine is called, and the process proceeds to step 60, where rDEPF=OJ, so the process proceeds to step 62, and the same operation is performed thereafter, and the subroutine is returned. do. Upon returning to the main routine, step 17-
18-. Proceed to 19-20, and here the remote control flag RE
The state of the MF is determined, but since rREMF = IJ, step 2 is performed, which is the release sequence in Figure 1-2.
Proceed to step 3.

After this, the same operation as in the program mode is repeated, so the explanation of the subsequent operation will be omitted.

According to this embodiment, when depth mode is selected and remote control shooting is also instructed at the same time, shooting in depth mode is prohibited and the camera is automatically switched to program mode (No. 1-1). Figure step 7 → 45),
In this case, it is possible to prevent depth photography from being performed where proper photography cannot be desired.

(Effects of the Invention) As described above, according to the present invention, when remote control photography is instructed, even if depth-of-field priority photography is selected by the selection means, the photography control unit We have created a prohibition measure that prohibits depth-of-field priority shooting, which prevents the above-mentioned depth-of-field priority shooting from occurring during remote control shooting. Therefore, when shooting with remote control, it is desirable to take appropriate photos. It is possible to prevent depth-of-field-priority photography that cannot be performed.

[Brief explanation of drawings]

1-1 and 1-2 are main flowcharts showing the operation in one embodiment of the present invention, FIG. 2 is a diagram showing the configuration of a camera showing one embodiment of the present invention, and FIG. 3 is a main flowchart showing the operation in an embodiment of the present invention. A flowchart showing autofocus operation in an example,
FIG. 4 is a flowchart showing the film feeding operation in this embodiment, FIG. 5 is a flowchart showing the film winding operation in this embodiment, and FIG. 6 is a flowchart showing the film rewinding operation in this embodiment. 10...Microcomputer, 41...
...Remote control receiving circuit, 42...Receiving circuit, 1
01...Remote control transmitting circuit, 102...
・Light emitter, SWMO [lE...Mode changeover switch, REMF...Remote control flag, DEP
F...Depth mode flag, JFF...
・Focus flag, CNT...Focus count register,
MOV... Lens drive amount register.

Claims (1)

[Claims] (1) A selection means for selecting shooting using depth of field priority control, and when shooting using the selection means, distance measurement is performed for each subject at a different position, and based on this result, the lens is adjusted so that each subject is within the field of view. In an autofocus camera with a remote control function, remote control photography is instructed, and the autofocus camera is equipped with a photography control means that moves the subject to a position within the depth of field, sets an aperture value that brings each subject within the depth of field, and executes photography. The remote control is further provided with a prohibition means for prohibiting depth-of-field priority shooting by the shooting control means even if depth-of-field priority shooting is selected by the selection means when Autofocus camera with control function.