JPH0545712A - Pre-winding camera capable of using film taken out halfway - Google Patents

Abstract

PURPOSE:To prevent double exposure in the case d load with a film which is exposed in a normal winding camera and taken out halfway. CONSTITUTION:This pre-winding camera is provided with feeding means 28-31 for the film 1, display driving means 28 and 29 which drive the discrimination display means of a cartridge so as to discriminate and display the use state of the film, a film detecting means 27 which detects whether the loaded film is the film taken out halfway or not by distinguishing the discrimination display means, photographing finish information detecting means 18 and 23 which detect at the time of winding the film whether or not photographing finish information is recorded on the optional frame of the film or not, and a control means 21 which inhibits photographing and controls to rewind the film in the case of detecting that the loaded film is the film taken out halfway and photographing finish information is recorded on a frame on the most leading edge side of the film, and allows the discrimination display means to discriminate and display that the film is the film taken out halfway or the exposed film.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a prewind camera capable of using a halfway film, and more particularly to a prewind camera which can be used for a halfway film filmed by a normal wind camera.

[0002]

2. Description of the Related Art A normal wind camera is a predetermined amount of film (for example, 4
It is a camera that winds up one frame and then winds up one frame each time you shoot. On the other hand, a camera in which the film is once wound up to the end after the cartridge is loaded and then rewound by one frame each time a picture is taken is called a prewind camera. By the way, the film taken halfway is rewound once, taken out from the camera, and then
It may be loaded in the camera again and used again. In order to prevent double exposure in such a case, US Pat.
In Japanese Patent Laid-Open No. 75-75, the photographed information is magnetically recorded in, for example, a magnetic recording area of a film for a photographed frame, and the presence or absence of the photographed information is detected when the frame is reloaded, and the photographed information is recorded. There is disclosed a camera for taking an image with an unexposed frame (unexposed frame) facing the aperture.

[0003]

However, the camera disclosed in the above publication is a prewind camera, and it is premised that a film taken out halfway through the prewind camera is used, and the normal wind camera is used. It is not compatible with films shot in. Therefore, when a film shot with a normal wind camera is loaded, double exposure may occur.

An object of the present invention is to provide a prewind camera capable of using a halfway film which prevents double exposure when a halfway film taken by a normal wind camera is loaded.

[0005]

1 and 2 showing an embodiment, the present invention stores an intermediate take-out film 1 in which photographed information is recorded for a photographed frame. The film cartridge 5 is applied to a prewind camera that can be loaded. And film 1
Feeding means 28, 29, 30, 31 for feeding the film, and a film use state identifying and displaying means 6 provided on the cartridge 5.
0 (FIG. 3) is driven to discriminate between the display driving means 28, 29 for identifying and displaying the use state of the film and the film use state identifying and displaying means 60 to determine whether or not the loaded film is a half-taken film. Film detecting means 27 for detecting, photographed information detecting means 18, 23 for detecting whether or not photographed information is recorded when the film is wound by the feeding means 30, 31, and the film detecting means 2
It is detected that the film 1 loaded with 7 is a film taken out on the way, and the photographed information detecting means 18 and 23.
When it detects that the photographed information is recorded on the frame on the most front side of the film, the photographing is prohibited, the film is rewound by the feeding means 28, 29, and the film is driven by the display driving means 28, 29. Usage status identification display means 6
Control means 2 for drivingly controlling 0 to identify and display a film taken out in the middle or a used film
1, and solves the above problems.

[0006]

When it is detected that the loaded film 1 is a film that is taken out halfway, and it is detected that the photographed information is recorded on the frame on the most front side of the film, the control means 21 It is determined that the film has been previously photographed by the normal wind camera, the photographing is prohibited, and the film is rewound by the feeding means 28 and 29.
Then, the display driving means 28, 29 drive-control the film use state identifying and displaying means 60 to identify and display that the film is a partially taken out film or a used film.

Incidentally, in the section of means and action for solving the above problems for explaining the constitution of the present invention, the drawings of the embodiments are used for the purpose of making the present invention easy to understand. It is not limited to.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described with reference to FIGS. FIG. 2 shows the film used in this example. The frame numbers of the respective photographing frames are 1, 2, 3, ..., N-1, n from the leading end side of the film 1 as shown in the figure. Two perforations 3a and 3b are formed on the upper portion of the film 1 for each photographing frame. As can be seen from the figure, the perforations 3a are arranged on the front side of the film with respect to each photographing frame.
b is arranged on the film end side (cartridge side) with respect to each photographing frame. Further, one perforation 3b 'is arranged closer to the film front side than the perforation 3a of the frame number "1", and the perforation 3a' is closer to the cartridge side than the perforation 3b of the frame number "n" (end frame). However, a perforation 3c for clearly indicating the end is arranged on the cartridge side.

A magnetic recording region 2 coated with a magnetic recording medium as disclosed in, for example, Japanese Patent Laid-Open No. 2-136840 is provided below the film 1.
In the magnetic recording area 2, information regarding photographing is recorded by a magnetic head 18 described later.

Reference numeral 5 is a film cartridge for accommodating the film 1, and the cartridge 5 of this embodiment is disclosed in the specification of Japanese Patent Application No. 2-189994 filed by the present applicant. Similarly, a film state identification display device 60 as shown in FIG. 3 is provided. The identification display device 60 divides the peripheral edge of the upper end surface of the cartridge 5 into four, and provides a number indicating the usage state of the film 1 provided in the three areas and an index 6 indicating any number according to the usage state.
1 (provided on the spool shaft of the cartridge). When the index 61 indicates the number "1", it indicates that the film 1 in the cartridge 5 is a completely unused film, and when the index 61 indicates the number "2", the film 1 is photographed halfway and taken out. The film is a film taken out halfway, and when the numeral “3” is indicated, it indicates that the film is a used film for which shooting of all frames has been completed. It should be noted that the cartridge 5 is the same as US Pat.
The index 61 may be provided on a member different from the spool shaft as shown in the specification of No. 65600.

4A and 4B show three examples of the intermediate take-out film. FIG. 4A shows an intermediate take-out film previously taken by a prewind camera, and FIG. 4B shows an intermediate take-out film previously taken by a normal wind camera. , (C) respectively show the half-taken films previously photographed by both the prewind camera and the normal wind camera. In the figure, the shaded pieces indicate the pieces that have been photographed, and FIG.
In the film of (a), two frames have been photographed from the end, and in the film of FIG. 4 (b), two frames have been photographed from the leading end.
In the film of FIG. 4C, the two frames at the leading end and the two frames at the trailing end have been photographed.

FIG. 5 is a view of the prewind camera according to the present embodiment as seen from the rear side, showing a state in which the back surface is removed. On one end side of the camera body, the cartridge 5
Is provided with a cartridge chamber 11 in which the film winding spool 12 is loaded, a spool chamber 13 for accommodating the film take-up spool 12 is provided at the other end, and an aperture 14 for forming an exposure opening is provided therebetween. Also, the aperture 14
Above and below the inner rail 15 that forms a film passage.
And an outer rail 16 are provided respectively.

The film take-up spool 12 is connected to a film feeding motor 30 (FIG. 1) via a reduction gear mechanism (not shown), and is rotatable by the rotation of the motor 30. When the film feeding motor 30 is normally rotated after the film 1 is fed from the cartridge 5 to the film take-up spool 12, the film 1 is pressed by a film roller (not shown).
The film is taken up by the film winding spool 12 and wound up by the film winding spool 12.

A photoelectric element 17 such as a photoreflector for detecting the perforation of the film 1 is arranged above the aperture 14, and a magnetic recording area 2 provided on the film 1 is arranged below the photoelectric element 17. A magnetic head 18 and a pressure-bonding pad 19 for recording various kinds of information regarding photographing are provided on the magnetic recording medium, and the film 1 is sandwiched between the magnetic head 18 and the pressure-bonding pad 19 in a pressure contact state so that the film 1 is magnetized during traveling. Recording and playback can be performed properly. Here, when an arbitrary frame of the film faces the aperture 14, the photoelectric device 1
7 is positioned to detect the perforation 3b (FIG. 2) of the frame, and the magnetic head 18 is positioned directly below it.

FIG. 1 is a block diagram of a control system of the camera. Reference numeral 21 denotes a control circuit, which controls the operation of the camera 10 by the processing procedure described later. Reference numeral 22 denotes a recording circuit, which records information relating to photographing in the magnetic recording area 2 of the film 1 via the connected magnetic head 18. Here, the information regarding the photographing is information such as a photographing date and an exposure value at the time of photographing, and in the present embodiment, this information corresponds to the photographed information. A reproducing circuit 23 reproduces the information recorded in the magnetic recording area 2 via the magnetic head 18. A photoelectric conversion circuit 24 detects the presence or absence of the film 1 and perforation by the connected photoelectric element 17. Reference numeral 25 denotes a film end detection device, which inputs the output of the photoelectric conversion circuit 24 to store the moving time from the perforations 3a to 3b during the prewind and detects that the moving time is about half of the moving time between the previous perforations. It is determined that the movement is from perforation 3a ′ to 3c. That is, the film end is determined and a signal to that effect is output to the control circuit 21.

Reference numeral 26 is an exposure control device which controls a shutter mechanism portion and a diaphragm mechanism portion (not shown) to perform photographing. 27
Is a use state detecting device for detecting the use state of the film indicated by the identification display device 60 (FIG. 3) of the loaded cartridge 5. That is, this device 27 detects the rotational position of the cartridge spool shaft by a photoelectric element (not shown), and the detection result is obtained as in the case disclosed in Japanese Patent Application No. Hei 2-189994, for example. Input to the control circuit 21. The control circuit 21 determines which number the index 61 of the spool shaft indicates by the input rotational position signal, and thereby recognizes the use state of the film.

Reference numeral 28 is a cartridge drive motor, which is drive-controlled by a motor drive circuit 29. Here, the cartridge 5 of this embodiment feeds the film 1 from the cartridge by rotating its spool shaft (on which the film is wound). That is, when the cartridge drive motor 28 is normally rotated, the spool shaft of the cartridge 5 is rotated and the film is fed out. When the motor 28 is rotated in the reverse direction, the spool shaft rotates in the opposite direction to the above, and the film 1 is rewound into the cartridge 5.
Further, after rewinding, the display identifying device 60 of the cartridge 5 can be driven by the reverse rotation of the motor 28.

A film feeding motor 30 is driven and controlled by a motor control circuit 31, and the forward rotation of the film feeding motor 30 causes the take-up spool 12 to rotate so that the film 1 is taken up on the take-up spool 12. Be done.
A warning device 50 responds to a warning signal from the control circuit 21 to turn on or blink a warning LED (not shown) to display a warning.

The switch SW1 is a lid switch, which is turned on when a cartridge lid (not shown) is opened. The switch SW2 is a cartridge switch, which is turned on when the cartridge 5 is loaded in the cartridge chamber 11. The switch SW3 is a release switch, which is turned on by pressing a release button (not shown). The switch SW4 is a midway take-out switch, which is turned on in conjunction with the depression of a midway take-out command button (not shown).

Next, the procedure of control by the control circuit 21 will be described with reference to the flowcharts of FIGS. This program starts when the power battery is loaded into the camera, and first, in step S101, the variable W is set to zero. Then, in step S1, until the cartridge 5 is loaded (the cartridge is
Wait until the trigger switch SW2 is turned on), and if loaded, proceed to step S2. If it is determined in step S2 that the cartridge lid is open (lid switch SW1 is on), the process returns to step S1 and the cartridge lid is closed (lid switch SW1).
If it is determined to be off), the process proceeds to step S3.

In step S3, the detection result of the use state detecting device 27 is input, and it is determined whether the film in the loaded cartridge 5 is a film taken out halfway. If it is determined that the film is not taken out halfway, the process proceeds to step S4, and in step S4, the film is not an unused film,
That is, if it is determined that the film has been photographed, step S10
Go to 2. The variable W is set to 1 in step S102, the output of the warning signal is started in step S103, and the process proceeds to step S7.
Proceed to. In response to this warning signal, the warning device 50 gives a warning by, for example, lighting or blinking a warning LED (not shown).

On the other hand, if it is determined in step S4 that the film is an unused film, the process proceeds to step S5 to process the unused film. That is, the film 1 is fed from the cartridge, wound up to the end piece on the take-up spool 12, and the end piece (piece number n) is opposed to the aperture 14.
After that, the film 1 is rewound frame by frame while recording shooting information for each shooting, and after winding the frame (head frame) of the frame number 1, the film 1 is completely rewound into the cartridge 5 to rewind the film. I do. It should be noted that if the midway take-out switch SW4 is turned on before reaching the leading frame, rewinding is performed at that point.

Next, in step S6, the identification display device 60 of the cartridge 5 is driven and controlled in accordance with the use state of the film 1 (half-taken-out film or used film). That is, the cartridge drive motor 28 is rotated in the reverse direction to rotate the spool shaft of the cartridge 5 and the index 61 is set to the numeral "2" (corresponding to the film taken out halfway) by the usage condition detection circuit 27 according to the usage condition of the film 1. Yes) or the condition indicating the number "3" (corresponding to the used film) is detected, the motor is stopped. Step S
At 7, the process waits until the cartridge lid is opened, and when it is opened, the process proceeds to step S8. If it is determined in step S8 that the cartridge 5 is not taken out, step S
Returning to step 7, when it is determined that the sheet has been taken out, step S
Proceed to 104. When it is determined that W ≠ 1 in step S104, the process returns to step S1, and when it is determined that W = 1, the output of the warning signal is stopped in step S105 to cancel the warning by the warning device 50, and then W is set in step S106. The value is set to zero and the process returns to step S1.

On the other hand, if it is determined in step S3 that the film is taken out halfway, the process proceeds to step S9 in FIG. 7 and the cartridge drive motor 28 is passed through the motor drive circuit 29.
To forward the film 1, and subsequently in step S10, the film feeding motor 30 is normally rotated via the motor drive circuit 31 to wind the film 1 fed above onto the take-up spool 12. Start. Next, in step S11, the perforation 3 is performed by the photoelectric element 17.
Wait until b'is detected, and if detected, step S6
It waits until the perforation 3a is detected at 0, and if detected, the process proceeds to step S12.

In step S12, the variable N indicating the film frame number is initialized to 1, and the variable K for counting the perforations is initialized to zero, and then step S13 is performed.
Proceed to. In step S13, the magnetic head 18 is operated via the reproducing circuit 23 to reproduce information from the magnetic recording area 2 of the film 1. Then, if the photographing information is detected in step S14, that is, if it is determined that the leading frame has been exposed, the process proceeds to step S15, the film winding is stopped, and the film 1 is completely loaded into the cartridge 5 in step S16. Film rewinding process is performed. Next, in step S17, the identification display device 60 of the cartridge 5 is drive-controlled to display that the film is an intermediate take-out film. That is, the cartridge drive motor 2
8 is reversed and the spool shaft of the cartridge 5 is rotated, and the index 61 is the number "2" by the use state detection circuit 27.
When the state indicating (corresponding to the film taken out on the way) is detected, the motor is stopped. After that, the process proceeds to step S102 described above.

Here, in step S3, it is determined that the film is an intermediate take-out film, and thereafter, step S1.
It is determined in step 4 that the leading frame has been exposed. This means that the loaded film is the film shown in FIG. 4 (b) before being taken out by the normal wind camera or the film shown in FIG. 4 (c). It indicates that it is one of the half-taken films taken by both the prewind camera and the normal wind camera. Therefore, in the camera of this embodiment, which is a prewind camera, the filming is prohibited and the film is rewound.

On the other hand, if the photographed information is not detected in step S14, that is, if the leading frame is unexposed, film winding is continued and the process proceeds to step S18 until step S18 detects perforation 3b. , S14, S18 are repeated, and if perforation is detected, the process proceeds to step S19. In step S19, the perforation count value K is incremented and the process proceeds to step S20. In step S20, it is determined whether or not K = 2, that is, whether or not the perforation 3b of the frame is detected after the perforation 3a. If the result is negative, the process returns to step S13. It is determined that the frame having the frame number 1 and hereinafter referred to as the first frame) has faced the aperture 14, and the process proceeds to step S21 in FIG.

In step S21, the film frame number N is incremented by "1" and the perforation count value K is reset to zero. Then, in step S22, the magnetic head 18 reproduces information. If it is determined in step S23 that the shooting information is detected, the process proceeds to step S28, and if it is determined that the shooting information is not detected, the process proceeds to step S24. Here, if the result at step S23 is affirmative, the detected shooting information is for the exposed frame on the most front side, that is, for the last frame (frame number n-1 in FIG. 4A). It is a thing. Until perforations are detected in step S24, steps S22, S23, S
When 24 is repeated and detected, the perforation count value K is incremented in step S25 and the process proceeds to step S26. In step S26, it is determined whether or not K = 2, that is, whether or not two perforations are detected. If negative, the process returns to step S22, and if affirmative, it is determined that the film has moved by one frame, and the process proceeds to step S27. move on.

If it is determined in step S27 that the film end has not been reached, that is, the film end detection device 25 has not output a signal indicating the film end, the process returns to step S21 and the above-described processing is repeated to reach the film end. If it is determined that it has reached, the process proceeds to step S28.

In step S28, the winding of the film is stopped, and then in step S29, the cartridge drive motor 28 is driven to rewind the film by one frame, and as shown in FIG.
In step S30, the frame number N is incremented by "-1".
Here, the above step S23 is affirmative and step S2
In the case of advancing to 8, the one unexposed frame on the leading end side of the most exposed frame on the leading end side faces the aperture 14 by the processing of step S29. Further, the affirmative decision in step S27 and the advance to step S28 means that there is no exposed frame on the film, that is, the film is a new film. In this case, the process at step S29 results in the most end side. Piece faces the aperture.

Then, the process proceeds to step S51, and step S
If it is determined at 51 that the midway ejection switch SW4 has been turned on (the midway ejection is instructed), step S52
In step S53, the film winding process of rewinding the film 1 to the leading end is performed, and in step S53, the identification display device 60 of the cartridge 5 is drive-controlled to display that the film is a half-taken film. That is, the cartridge drive motor 28 is rotated in the reverse direction to rotate the spool shaft of the cartridge 5, and the use state detection circuit 27 detects the state in which the index 61 indicates the numeral "2" (corresponding to the film taken out halfway). Will stop the motor. Then, the process proceeds to step S7 described above.

If step S51 is denied, step S
31. In step S31, release switch SW3
If it is determined to be off, the process returns to step S51, and if it is determined to be on, shooting is performed through the exposure control device 26 in step S32, and after the shooting is completed, the cartridge drive motor 28 is driven in step S33 to drive one film of film. In addition to the rewinding of the number of minutes, in synchronization with this, the photographing information is recorded on the photographing frame by the magnetic head 18 via the recording circuit 22.

When rewinding for one frame is completed, step S3
At 4, it is determined whether N = 1. If the result at step S34 is affirmative, it is determined that the shooting of the first frame has ended, and then step S
If it is denied, the process proceeds to step S35, and it is determined that the first frame has not been reached yet, and the process returns to step S30. In step S35,
A film winding process of rewinding the film 1 to the leading end is performed, and in step S36, the identification display device 60 of the cartridge 5 displays that the film is a used film. That is, the cartridge drive motor 28 is rotated in the reverse direction to rotate the spool shaft of the cartridge 5, and when the use state detection circuit 27 detects the state in which the index 61 indicates the number "3" (corresponding to the used film), the motor is turned on. Stop. Then, the process proceeds to step S7 in FIG.

The above is the control procedure by the control circuit 21, and the summary thereof is as follows. First, when a film is loaded into the camera and the back cover is closed, the usage state of the loaded film 1 is judged from the state of the identification display device 60 of the cartridge 5. If it is a used film, a warning is given, and if it is an unused film, shooting is performed in sequence from the end frame after the film is sent out and prewinded.

Further, in the case of a film taken out on the way,
During the prewind after the film is sent out, information reproduction is first performed by the magnetic head 18 on the frame (front frame) on the most front side of the film. When it is detected that the photographing information is recorded on the leading frame (the leading frame has been exposed), the film 1 is completely rewound into the cartridge 5. That is, the fact that the film is an intermediate take-out film and the first frame has been exposed means that the film is an intermediate take-out film that was previously shot by a normal wind camera or both a normal wind camera and a pre-wind camera (FIG. 4 (b)). Or (c)), and therefore, if the prewind camera according to the present embodiment performs shooting, double exposure occurs. Therefore, shooting is prohibited and rewinding is performed. Further, after rewinding, it is identified and displayed as a film taken out on the way.

On the other hand, it is detected that the loaded film is an intermediate take-out film, and the photographed information is not recorded for the first frame during the prewind after the film is sent out (the first frame is unexposed). When
It is determined that the film is a film taken out halfway (FIG. 4A) that was previously taken only by the prewind camera, and prewind (winding) and information reproduction are continued. Then, when an exposed frame is detected, the film is rewound by one frame, the immediately preceding unexposed frame is made to face the aperture 14, and the frame is hung from the leading end side to sequentially perform photographing.
Then, when the shooting of the first frame is completed, the film is rewound, and the film that has already been shot is identified and displayed.

In the structure of the above embodiment, the cartridge drive motor 28, the film feed motor 30 and the respective motor drive circuits 29 and 31 indicate the feeding means, and the cartridge drive motor 28 and the motor drive circuit 29 indicate the feeding means. The usage state detection device 27 constitutes a film detection means, the magnetic head 18 and the reproduction circuit 23 constitute a photographed information detection means, and the control circuit 21 constitutes a control means.

Further, in the above description, in the case of a film taken out halfway taken by a normal wind camera, in the case of a film taken out halfway by both a normal wind camera and a prewind camera, it is a film taken out halfway after being rewound. I tried to identify it,
By replacing step S17 of FIG. 7 with step S37 of FIG. 10, it may be possible to identify and display the used film. In this case, this film cannot be used, but double exposure can be reliably prevented.

The identification display device is not limited to the one shown in FIG. 3, and if the film usage state can be identified and the usage state can be detected by the camera, the above-mentioned US Pat. No. 4,965,600. Other configurations such as the specification may be used. In the case of the identification display device of the above specification, the display drive means is separately required. Further, although the information regarding the photographing is used as the photographed information, dedicated photographed information may be used separately from this photographing information.
Further, the present invention can be applied to a camera capable of switching between the normal wind system and the prewind system. In the present embodiment, since the identification display device is the one shown in FIG. 3, when the film is wound to determine whether or not the leading end frame has been photographed, the spool shaft rotates and the index 61 shifts. , It is necessary to drive and control the index after rewinding to return to the state when the index is inserted into the camera. However, as shown in the above-mentioned US Pat. No. 4,965,600,
If you use a film cartridge that has no relation to the movement of the index and the rotation of the spool shaft, and if the display drive means is separately provided as described above, you do not need to control the drive after rewinding, and insert the cartridge. At any time during the period, it is possible to identify whether it is a film that has been taken out halfway or is a used film.

[0040]

As described above, according to the present invention, when the loaded film is the film taken out in the middle and the photographed information is recorded on the frame at the most front end side of the film. , The film is rewound by prohibiting shooting, and it is displayed to identify that it is a film that is taken out halfway or is a used film. In addition to the prevention of double exposure, the use state of the film can be immediately judged after rewinding.

[Brief description of drawings]

FIG. 1 is a block diagram showing a control system of a camera according to an embodiment of the present invention.

FIG. 2 is a diagram showing a structure of a film.

FIG. 3 is a plan view showing the structure of a cartridge identification display device.

FIG. 4 is a diagram showing three examples of a film taken out on the way.

FIG. 5 is a rear view showing the configuration of the camera.

FIG. 6 is a flowchart showing a processing procedure.

FIG. 7 is a flowchart following FIG.

FIG. 8 is a flowchart following FIG.

FIG. 9 is a flowchart following FIG.

FIG. 10 is a flowchart showing a modified example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 film 2 magnetic recording area 5 film cartridge 14 aperture 17 photoelectric element 18 magnetic head 21 control circuit 22 recording circuit 23 reproduction circuit 24 photoelectric conversion circuit 27 use state detection device 28 cartridge drive motor 29, 31 motor drive Circuit 30 Film feeding motor 50 Warning device 60 Film status identification display device SW1 Lid switch SW2 Cartridge switch SW3 Release switch SW4 Midway ejection switch

Claims (1)

[Claims] 1. A film carrier for accommodating a film taken out on the way in which photographed information is recorded with respect to a photographed frame.
In a prewind camera in which a cartridge can be loaded, a feeding unit that feeds the film, and a display driving unit that drives a film use state identification display unit provided on the cartridge to identify and display the use state of the film. By determining the film use state identification display means,
A film detection unit that detects whether the loaded film is a film that is taken out halfway; a filmed information detection unit that detects whether or not the filmed information is recorded when the film is wound by the feeding unit; The film detecting means detects that the loaded film is a film taken out halfway, and the photographed information detecting means detects that the photographed information is recorded on the frame at the most front end side of the film. Sometimes
Prohibit shooting, rewind the film by the feeding means,
It is possible to use an intermediate take-out film, characterized by comprising a control means for drivingly controlling the film use state identifying and displaying means by the display drive means to identify and display the film as an intermediate take-out film or a used film. Prewind camera.