JPH09211619A - Camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely prevent double exposure to an exposed frame. SOLUTION: Winding of a film is started (#10), and the film feed speed is calculated (#20). The calculated film feed speed V is compared with the preset speed Vo (#30), and if V<Vo film winding is stopped (#80), and subsequently rewinding is started (#90). When passing of the leading end of the film is detected (#100), the rewinding operation is stopped in a position where a display disc of a film cartridge displays partial exposure, and a warning message saying that the feed speed is abnormal is displayed on the display part (#120).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film-loading camera according to a novel system.

[0002]

2. Description of the Related Art In recent years, as a film cartridge according to a new system, a light-shielding door that is openably and closably provided at a film outlet is provided, and a pair of perforations are regularly formed in the film winding direction. It is considered that a film for accommodating a film for recording and a magnetic recording portion provided corresponding to each frame for recording data regarding photographing information of each frame and the like is stored.

In a camera using such a film,
A magnetic head capable of recording / reading magnetic data is provided, and by recording the presence / absence of photographing in the magnetic recording section, a film cartridge in which the film is rewound once the frame is photographed is loaded. Then, it is conceivable to read the magnetic data of the magnetic recording unit while winding the film, and restart the photographing from an unexposed frame.

[0004]

Generally, when reading a magnetic recording medium on which magnetic data is recorded, when the magnetic recording medium is moved relative to the magnetic head, the magnetic data on the magnetic recording medium causes a gap in the magnetic head. The magnetic field generated between them changes, a voltage proportional to the rate of change of magnetic flux is induced in the coil in the magnetic head, and this is performed by detecting the level of this induced voltage.

Therefore, when reading magnetic data while winding the film, the film feeding speed decreases due to a decrease in the power supply voltage due to exhaustion of the battery, an increase in the film load at low temperature, and the like, which causes the relative movement speed. Is lower, the rate of change in magnetic flux is lower and the induced voltage level is lower. Therefore, the data cannot be read accurately, which may cause the exposed frame to be erroneously determined to be unexposed and to be double-exposed.

The present invention solves the above problems and provides a camera capable of reliably preventing double exposure of an exposed frame by checking whether or not magnetic data can be accurately read. The purpose is to

[0007]

According to the present invention, there is provided a film cartridge containing a film having a magnetic recording portion, which is provided corresponding to a frame to be photographed and has at least data regarding presence / absence of exposure. A camera for pulling out a film and sequentially photographing each frame, a driving means for winding the film, a magnetic reading means for reading data recorded in the magnetic recording unit during the winding of the film, and the film. And a drive control means for stopping the winding of the film when the winding speed is equal to or lower than a predetermined value (claim 1).

According to this structure, the film is wound, and the data recorded in the magnetic recording unit is read during the winding. Further, the film winding speed is detected, and when the film winding speed is equal to or lower than a predetermined value, the film winding is stopped. As a result, when the film winding speed is equal to or lower than the predetermined value, the reading operation of the data recorded in the magnetic recording unit is stopped.

The camera according to claim 1 further comprises rewinding means for rewinding the film into the film cartridge when the film winding is stopped by the drive control means (claim 2). .

According to this structure, when the film winding speed is equal to or lower than the predetermined value, the film winding is stopped,
Further, it is rewound into the film cartridge. This allows the film cartridge to be removed.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a camera according to the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a film cartridge used in this camera, and FIG. 2 is a perspective view of the film cartridge in an upside down state.

In this film cartridge, the film 22 is completely contained in the film cartridge 21. The film cartridge 21 has a cylindrical shape having an upper plate 113 and a bottom plate 114, and a film pull-out portion 115 is projectingly provided on a side surface parallel to the axis.
The film outlet 116 is provided on the tip side surface of the
A rotary shading door 117 is provided at the film outlet 116.

The upper plate 113 of the film cartridge 21
Has a round hole 121 formed at the center of the shaft, a keyhole 122 provided at the tip of the film pull-out portion 115, and a notch 123 formed in a fan shape at an appropriate position on the peripheral edge. On the other hand, the bottom plate 114 of the film cartridge 21 is
A round hole 131 formed at the center of the shaft and the film pull-out portion 11
5 and the keyhole 132 provided at the tip end of the No. 5 and having a constant interval on the same radius, respectively, ○ shape, half moon shape, ×
Apertures 133, 134, 1 for allowing the photographer to visually recognize the usage state of the film 22 stored in the film cartridge 21.
35 and 136.

At the axial center of the film cartridge 21,
A cartridge spool 141 for feeding and rewinding the film 22 is rotatably provided. A groove 141a is formed in the cartridge spool 141. Also, this cartridge spool 141
A data disk 142, which will be described later, is fixed on the upper surface side, and a display disk 143 is fixed on the lower surface side. The data disk 142 and the display disk 143 are adapted to rotate integrally with the cartridge spool 141.

As shown by the broken line in FIG. 2, the display disk 143 is divided into a wide-angle sector 143a and a narrow-angle sector 143b by different colors. The wide-angle sector 143a is black and has a narrow angle. The fan-shaped portions 143b are colored white. As for the central angle of the narrow-angle fan-shaped portion 143b, the narrow-angle fan-shaped portion 143b has the opening portions 133, 134,
An angle that does not cover two adjacent openings of 135 and 136 at the same time (90 ° or less in this embodiment)
Is set to

When the film 22 stored in the film cartridge 21 is unused, that is, when it is not exposed, the narrow-angle fan-shaped portion 143b faces the opening 133, and the photograph is taken partway, that is, partially exposed. , The narrow-angle fan-shaped portion 143b faces the opening portion 134, the narrow-angle fan-shaped portion 143b faces the opening portion 135 when the exposure is performed up to the last frame, and the narrow angle fan-shaped portion 143b when the film 22 is developed. The phase of the rotation stop position is set so that the fan-shaped portion 143b faces the opening 136. In FIG. 2, the film 22
Indicates that it is unexposed.

FIG. 3 is a plan view showing a radial bar code recorded on the data disk 142. The data disk 142 is divided into a black area BZ in which the entire surface is black and a code area CD in which predetermined information is coded.

The black area BZ has a relatively wide angle and is for detecting the start position of the code area CD.

The code area CD records information relating to film sensitivity and color / monochrome or negative / positive discrimination by a combination of bars and spaces.

Area CD2 of the code area CD
Records a code relating to the number of films by a combination of a total of three bars and spaces.

4 and 5 are schematic structural views of the inside of the camera body. FIG. 4 is a view from the top side, and FIG. 5 is a view from the back side. FIG. 6 is a block diagram showing a film feeding system.

As shown in FIG. 4, the camera body 11 has a photographic lens section 12 having a photographic lens (not shown) arranged in the center thereof, and a cartridge loading chamber arranged on the right side of the photographic lens section 12. 13 and this cartridge loading chamber 13
A film feeding motor 14 arranged on the right side of the film taking-up chamber, a film winding chamber 15 arranged on the left side of the photographing lens unit 12, and an exposure arranged behind the optical axis of the photographing lens unit 12. A battery housing chamber 1 for housing the frame 16 and the perforation sensor 17 and the battery 18 arranged at the right end portion.
9 and 9.

The cartridge loading chamber 13 is for loading the film cartridge 21, and is constructed so that the opening is closed by a loading chamber cover (not shown), and the light shielding door 117 is provided inside. An open / close key 13a (FIG. 6) for opening and closing and a drive key 13b (FIG. 6) for engaging the groove portion 141a of the cartridge spool 141 and rotating the cartridge spool 141 are provided.

Further, as shown in FIG. 4, the cartridge loading chamber 13 is provided with a loaded film cartridge 21.
The code reading sensor 20 is provided above the cartridge spool 141. The code reading sensor 20 is composed of a photo reflector or the like, is arranged so as to face the notch 123 of the film cartridge 21, and reads the bar code on the data disk 142.

The film winding chamber 15 is provided with a winding spool 24 for winding a film, and a cylindrical film retainer 25 arranged in contact with the peripheral surface of the winding spool 24 at a required pressure. There is. As shown in FIG. 6, the winding spool 24 has a cylindrical shape and is rotatably arranged in the film winding chamber 15.

As shown in FIG. 5, the exposure frame 16 is a horizontally long frame body, and is provided with an exposure window 26 formed on the optical axis of the taking lens unit 12 (FIG. 4). The exposure window 26 has a rectangular shape with a predetermined aspect ratio, and controls the exposure area of the film.

The perforation sensor 17 is composed of a photo interrupter, and detects the perforations 41 and 42 (FIG. 7) punched in the film to control the feeding of the film. The arrangement position of the perforation sensor 17 will be described later.

As shown in FIG. 6, the motor 14 is connected to the drive key 13b for rotating the film cartridge 21 and the winding spool 24 by a cartridge speed reducing system 31 and a winding spool speed reducing system 32. The cartridge deceleration system 31 and the winding spool deceleration system 32 are composed of gears and the like that are connected so as to be able to rotate forward and backward. The rotational driving force of the motor 14 is decelerated at a predetermined deceleration ratio and transmitted to the drive key 13b and the winding spool 24. It is a thing.

A motor rotation amount sensor 33 is attached to the motor shaft 14a of the motor 14 as shown in FIG. The motor rotation amount sensor 33 is configured by a pulse encoder including a disc 34 having detection pieces protruding from the peripheral edge at regular intervals and a photo interrupter 35 that detects passage of the detection pieces, and detects the rotation amount of the motor 14. To do.

The motor rotation amount sensor 33 may be composed of a pulse encoder including a disk having slits formed at regular intervals in the circumferential direction and a photo interrupter for detecting passage of the slits.

Further, as shown in FIG. 5, the camera body 11 is provided with a magnetic head 36 which is arranged at the lower left of the exposure window 26. As shown in FIG. 6, the magnetic head 36 faces the film 22 and is arranged below the first PS 17 and at a height position where magnetic recording sections 44 and 45, which will be described later, pass through, and records magnetic data. Is to do.

Further, the magnetic head 36 includes the magnetic recording unit 4
The magnetic data recorded in Nos. 4 and 45 are read. That is, by feeding the film 22, the magnetic recording unit 4
According to the magnetic data recorded in 4, 45, the magnetic head 3
The magnetic field generated between the gaps of No. 6 changes, and a voltage proportional to the magnetic flux change rate due to this changes is induced in the internal coil, and this induced voltage is sent to the control unit 60 described later to detect the level of this induced voltage. Done by

The camera body 11 includes a magnetic head 36.
Of the magnetic head 3 between the recording / reproducing position where the head surface of the recording medium is in contact with or close to the surface of the film 22 and the retracted position where the recording / reproducing position is separated.
An unillustrated moving means for moving 6 is provided, and the magnetic head 36 is arranged at the recording / reproducing position only when recording and reading magnetic data.

FIG. 7 is a view showing the structure of the film 22. The film 22 is composed of three regions including a leader portion 22a, an exposure portion 22b, and an end portion (not shown) from the top (the left end in FIG. 7). The leader portion 22a is a lead portion for pulling out the film 22 from the film cartridge 21, the exposure portion 22b is an area where a predetermined number of photographs are photographed at a predetermined pitch, and the end portion is a photograph for the last frame of the exposure portion 22b. This is an area for pulling out the film 22 from the film cartridge 21 by a predetermined size or more in order to enable the above.

One side edge in the width direction of the film 22 (in FIG. 7,
On the upper side), rectangular perforations 41 and 42 of the same shape are regularly formed in pairs along the side edges, and a piece 43 for photographing is provided between the perforations 41 and 42. There is.

The perforations 41 are for reference of stop positions when the film 22 is wound up, and the perforations 42 are for reference of arrangement positions of the frame 43 and magnetic recording portions 44 and 45 described later.

The dimension of the perforations 41 and 42 in the winding direction is set to d0, and the interval between the adjacent perforations 41 is set to the dimension d1.
And the distance between the perforation 42 and the dimension d2 (<d
1) is set.

A reader magnetic recording section 44 and a plurality of frame magnetic recording sections 45 are provided on the other side edge portion of the film 22 in the width direction (lower side in FIG. 7).

The reader magnetic recording unit 44 is the reader unit 2.
It is an area provided in 2a for recording a title corresponding to the entire film and top-bottom information for perforation of the photographed picture.

The frame magnetic recording unit 45 is the exposure unit 2
It is provided adjacent to the frame 43 of 2b in the film width direction, the shooting date, the shooting screen (portrait / horizontal), the exposure control value, the shooting magnification, the angle of view, the light source, the number of prints, etc. regarding the photograph taken by the frame 43. Is for recording the predetermined information.

The areas of the reader magnetic recording section 44 and the frame magnetic recording section 45 are set by the dimension from the right end of the perforation 42. That is, the front end of the reader magnetic recording unit 44 has a dimension d3 from the right end of the leading perforation 42, and the rear end has a dimension d4. In addition, the front end of the frame magnetic recording unit 45 is connected to each of the perforations 4
2 has a dimension d5 from the right end and a dimension d6 from the rear end.

Next, the position where the perforation sensor 17 is arranged will be described with reference to FIGS. FIG. 8 is a view showing a state in which the film 22 is wound around the winding spool 24 in FIG. 5 and is in the photographing position.

As shown in FIG. 8, the perforation sensor 17 is at a height position where passage of the perforations 41 and 42 can be detected, and as shown in FIG.
The detection point is arranged at a position of dimension d7 from the left end of the exposure window 26.

Then, as shown in FIG. 8, the detection point of the perforation sensor 17 is located in the middle of the perforations 41 and 42 when the frame of the film 22 is at the photographing position. By detecting the edge of the perforation 41 by the perforation sensor 17, the feeding stop control for feeding one film of the film 22 at the time of photographing is performed.

FIG. 9 is a block diagram showing the control system of this camera. The motor driver 51 supplies a drive current to the motor 14, and when stopping the rotation of the motor 14, it can be stopped in a short time by applying reverse energization braking. The magnetic head driver 52 supplies an electric current to the magnetic head 36 to turn it on and off to supply the electric current to the magnetic recording unit 4.
4 and 45 record data, and the supply current is controlled by the controller 60. Further, when the magnetic data is read by the magnetic head 36, the magnetic data is magnetically picked up and sent to the control unit 60.

The photometric distance measuring unit 53 measures the subject brightness and the subject distance, and the exposure unit 54 exposes the film using the measurement result of the photometric distance measuring unit 53. The display unit 55 is composed of an LCD panel or the like, is arranged at an appropriate position on the back surface of the camera body 11, and displays whether or not a film is loaded, various data, and a warning message as described later.

The control unit 60 is composed of a ROM 61, a RAM 62, a microcomputer having a clock function, and the like,
As shown in the flowcharts of FIGS. 11 and 12 described later, the operation of the camera is controlled. ROM 61
Stores a control program and the like, and the RAM 62 temporarily stores various data.

A release switch 63 is connected to the control section 60. This release switch 63
Is disposed at a proper place on the surface of the camera body 81 for performing a photographing operation, and the control section 60 controls the operation of each section when the release switch 63 is pressed.

Next, the operation of the camera having the above structure will be described. When the film cartridge 21 is stored in the cartridge loading chamber 13, the open / close key 13a provided therein is fitted into the key hole 122, and the open / close key 1
The light blocking door 117 is opened by rotating 3a.

Further, the drive key 13b disposed inside is engaged with the groove portion 141a of the cartridge spool 141. As described above, since the display disk 143 is fixed to the cartridge spool 141, the narrow-angle fan-shaped portion 1
The positional relationship between 43b and the groove 141a does not change. Therefore, by detecting the phase of the rotational angle position of the drive key 13b when the drive key 13b is engaged with the groove portion 141a of the cartridge spool 141 by using a rotary encoder or the like that rotates integrally with the drive key 13b, the display disk 143 can be detected. The position of the narrow-angle sector 143b, that is, the state of the film 22 is detected.

In FIG. 1, when the cartridge spool 141 is rotated in the Y direction, the film 22 is sent out from the film outlet 116 of the film cartridge 21, and when rotated in the X direction, the film 22 is rewound into the film cartridge 21. Be done. Further, when the cartridge spool 141 is rotated in the X direction, the bar code of the data disk 142, that is, the information on the film 22 is read by the code reading sensor 20 in the cartridge loading chamber 13.

Since the positional relationship between the data disc 142 and the narrow-angle fan-shaped portion 143b is fixed, the data disc when the film cartridge 21 is loaded when the bar code of the data disc 142 is read by the code reading sensor 20. The position of the narrow-angle fan-shaped portion 143b, that is, the film 22 is also detected by detecting the angle formed from the reading start position on the 142 to the end of the black region BZ.
The state of can be detected.

Then, as a result of detection of the position of the narrow-angle fan-shaped portion 143b of the display disc 143, that is, the state of the film 22, if the film is unexposed, the first frame up to the first frame 22 is detected.
If it is a partially exposed film, the magnetic head 36 detects whether or not magnetic data is recorded in the frame magnetic recording unit 45 to detect an unexposed frame position. I try to wind it up.

Next, referring to the timing chart of FIG. 10, according to the flow charts of FIG. 11 and FIG.
The operation of this camera will be described. 10 is a timing chart showing the state of each part, FIG. 11 is a flowchart showing a main routine, and FIG. 12 is a flowchart showing a subroutine of # 20 of FIG.

As a result of the state detection of the film 22, if the film is a partially exposed film, the winding of the film 22 is first started (# 10). That is, as shown in FIG.
The supply of the motor current I _M to the motor 14 is started. Then, the rotation speed V _M of the motor 14 rises toward a stable speed, and the pulse width of the detection signal SMP of the motor rotation amount sensor 33 is shortened accordingly, and the motor 14 is driven at a constant rotation speed V _1. To be done.

Then, the process proceeds to the feeding speed subroutine shown in FIG. 12 (# 20). First, when the front end of the leading perforation 41 is detected by the perforation sensor 17 (YES in # 210), counting of the number of pulses of the detection signal SMP of the motor rotation amount sensor 33 is started (#
220), when the rear end of the perforation 41 is detected by the perforation sensor 17 (#
YES in 230), detection signal of the motor rotation amount sensor 33
The counting of the SMP pulse number is completed (# 240), and at this time, the feeding speed of the film 22 is calculated from the count pulse number M (# 250). That is, the film feed amount per pulse is calculated from the dimension d0 of the perforation 41 and the pulse number M of the detection signal SMP of the motor rotation amount sensor 33 output during that period. On the other hand, the control unit 60
By counting the number of pulses of the detection signal SMP of the motor rotation amount sensor 33 per unit time, the film feeding speed V is calculated from these values.

Next, returning to FIG. 11, the magnitude of the calculated film feeding speed V and the preset speed V ₀ is discriminated (# 30), and if V ≧ V ₀ (YE in # 30).
S), the magnetic data of the frame magnetic recording unit 45 is read (# 40), and it is determined whether or not it is an unexposed frame (#).
50).

If it is an unexposed frame (YE in # 50)
S), the frame is rewound to the shooting position and stopped (# 6
0), then the acceptance of the release switch 63 is permitted (# 70), the process ends, and if it is not an unexposed frame in # 50 (NO in # 50), the process returns to # 40 and the above operation is repeated.

On the other hand, if V <V ₀ in # 30 (NO in # 30), the winding of the film 22 is stopped (# 80), and then the rewinding is started (# 90), and the film 22 is wound. Continues until tip passage is detected (#
No in 100), when passage of the tip is detected (# 100
YES), the rewinding operation is stopped at a position where the display disk 143 of the film cartridge 21 displays a partial exposure (# 110), and a warning message indicating that the feeding speed is abnormal is displayed on the display unit 55 ( # 120), and the process ends.

As described above, the feeding speed V of the film 22 is calculated by counting the pulse number M of the motor rotation amount sensor 33 during the passage of the perforation 41, and the feeding speed V is less than the set speed V _0. For example, since the reading of magnetic data is stopped and the cueing of the unexposed frame is stopped, the reading operation can be continued only when the reading of magnetic data can be performed accurately. Double exposure can be reliably prevented.

The set speed V ₀ is set to the lower limit speed at which the magnetic data can be reliably read.

As shown by the broken line in FIG. 11, # 50
If it is not an unexposed frame (NO in # 50), # 2
You may make it return to 0. As a result, even when the feeding speed V becomes lower than the set speed V ₀ while the exposed frame continues, the magnetic data reading operation can be stopped.

In step # 100, the elapsed time from the detection of the trailing edge of the perforation to the detection of the leading edge of the perforation by the perforation sensor 17 is counted. Good.

The present invention is not limited to the above-mentioned embodiment, and the following modifications can be adopted.
In the following (1) to (3), different procedure examples for calculating the feeding speed of the film 22 are described.

(1) The ROM 61 stores table data for obtaining the film feed amount when the motor rotation amount sensor 33 rotates by one pulse from the current number of frames of the film 22. That is, the diameter of the winding spool 24 and the thickness of the film 22 are known, and these can be used to calculate the ratio of the winding thickness of the winding spool 24 according to the number of frames of the film 22. Further, the speed reduction ratio of the winding spool speed reduction system 32 is also known. From this speed reduction ratio and the ratio of the above-mentioned winding thickness, the film feed amount per pulse from the motor rotation amount sensor 33 is a function of the number of frames of the film 22. Is calculated in advance. This function is stored in ROM6
1 is stored in advance as table data.

Then, referring to the table data stored in the ROM 61, using the current number of frames of the film 22,
The film feed amount per pulse of the detection signal SMP of the motor rotation amount sensor 33 is obtained. On the other hand, the control unit 60 controls the detection signal SMP of the motor rotation amount sensor 33 per unit time.
It is also possible to count the number of pulses of and to calculate the film feeding speed V from these values.

In this case, since the detection of the perforation is not necessary, the feeding speed can be discriminated by the time the first perforation is detected. Can be notified.

(2) In # 220 of FIG. 12, the control unit 60 starts the timer count and ends the count in # 240 to measure the passage time of the perforation.
The film feeding speed V may be calculated from the dimension d0 of 1.

(3) On the film retainer 25 (see FIG. 4),
A pulse encoder for detecting the amount of rotation of the film presser 25 is attached, and the amount of rotation of the film presser 25 per unit time is detected by a timer count by the control unit 60 to obtain the feeding speed of the film 22. Good. In this case, the rotation speed of the film presser 25 does not depend on the film thickness, and the film 22
Since it is equal to the feeding speed of, the feeding speed can be directly obtained.

(4) In the above embodiment, the cueing of the partially exposed film is automatically performed, but a switch for instructing the cueing may be provided.

(5) Preventing magnetic data reading errors by applying to a printing system for printing exposed film and a film image reproducing apparatus for reproducing and displaying a film image on a display device such as a CRT. You can

[0072]

As described above, according to the invention of claim 1, the winding speed of the film is detected, and the winding is stopped when the winding speed is equal to or lower than a predetermined value. It is possible to prevent the reading error of the data recorded on the recording medium, and thus it is possible to reliably prevent the double exposure of the exposed frame. Further, by stopping the film winding, it is possible to notify the user of the occurrence of the abnormality.

According to the second aspect of the invention, when the film winding speed is equal to or lower than the predetermined value, the film is further rewound into the film cartridge, so that the film cartridge can be immediately taken out, and thus the operation can be performed. It is possible to improve the property.

[Brief description of drawings]

FIG. 1 is a perspective view of a film cartridge used in the present camera.

FIG. 2 is a perspective view showing a state in which the film cartridge is turned upside down.

FIG. 3 is a plan view showing a radial barcode recorded on a data disc.

FIG. 4 is a schematic configuration diagram as seen from the upper surface side inside the camera body.

FIG. 5 is a schematic configuration diagram viewed from the back side inside the camera body.

FIG. 6 is a configuration diagram showing a film feeding system.

FIG. 7 is a diagram showing a structure of a film.

FIG. 8 is a diagram showing a state in which the film is wound around a winding spool in FIG. 5 and is in a photographing position.

FIG. 9 is a block diagram showing a control system of the present camera.

FIG. 10 is a timing chart showing a state of each part.

FIG. 11 is a flowchart showing a main routine.

FIG. 12 is a flowchart showing a subroutine of # 20 of FIG.

[Explanation of symbols]

11 camera body 14 motor (driving means, rewinding means) 17 perforation sensor (speed detecting means) 21 film cartridge 22 film 24 winding spool 25 film retainer 33 motor rotation amount sensor (speed detecting means) 36 magnetic head (magnetic reading means) 41, 42 Perforation 43 Frame 44 Reader magnetic recording unit 45 Frame magnetic recording unit 51 Motor driver 52 Magnetic head driver 55 Display unit 60 Control unit (speed detection means, drive control means, rewinding means) 61 ROM 62 RAM

Claims (2)

[Claims] 1. A piece is provided corresponding to a frame on which an image is taken,
A camera for pulling out the film from a film cartridge containing a film having a magnetic recording section in which at least data regarding presence / absence of exposure is recorded and sequentially photographing each frame, and a driving means for winding the film. Magnetic reading means for reading data recorded in the magnetic recording portion during winding of the film, speed detecting means for detecting a winding speed of the film, and winding of the film when the winding speed is equal to or lower than a predetermined value. A drive control means for stopping the camera. 2. The camera according to claim 1, wherein the film winding is stopped by the drive control means.
A camera comprising rewinding means for rewinding the film into the film cartridge.