JPH1130808A - Camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a camera capable of displaying information recorded in the magnetic recording part of a loaded film. SOLUTION: The camera which can be loaded with a film cartridge having the magnetic recording part and is provided with a magnetic head for reading the recorded information of the magnetic recording part of the film cartridge, is equipped with display processing means (400-402) for displaying the recorded information of the magnetic recording part of the film cartridge, read by the magnetic head, on a display means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera which can use a film cartridge having a magnetic recording section.

[0002]

2. Description of the Related Art There has been proposed a camera in which a film cartridge having a magnetic recording section can be loaded, and magnetic storage data can be written on a film and information recorded in the magnetic recording section can be read by a magnetic head.

In general, such a camera does not feed a film when a developed film cartridge is loaded, but only warns that a developed film is loaded.

The reading means for processing the magnetic data of the magnetic recording portion of the film read by the magnetic head is written with the magnetic data in order to wind up to an unexposed frame when the film which has been rewound halfway is loaded. It is only used to check if it is.

[0005]

Therefore, in the display and rewriting of the magnetic storage data of the developed film, the data is displayed using a dedicated tool, the data is changed, or the lab for developing the film is used. It is conceivable to rewrite the data change at the store. The most common data for rewriting magnetic storage data at a lab store or the like is a panorama / classic / high-vision aspect change at the time of printing, and it is troublesome to go to a lab store or the like every time the change is made.

[0006] Further, depending on the contents, it is not possible to receive the contents. Further, if the general user cannot read or change the data without purchasing some tools, the magnetic information is not truly convenient for the user.

An object of the first invention according to the present application is to provide a camera capable of displaying information recorded on a magnetic recording section of a loaded film.

A second object of the present invention is to provide a camera capable of rewriting information recorded on a magnetic recording section of a loaded film.

A third object of the present invention is to provide a camera capable of performing a photographing operation and a magnetic information reading operation depending on whether or not a loaded film has been developed.

[0010]

According to a first aspect of the present invention, a film cartridge having a magnetic recording unit can be loaded, and recording information of the magnetic recording unit of the film cartridge is stored. In a camera having a magnetic head for reading, there is provided a display processing means for displaying, on a display means of the camera, recording information of a magnetic recording portion of the film cartridge read by the magnetic head.

According to a second aspect of the present invention, there is provided a camera capable of loading a film cartridge having a magnetic recording portion and having a magnetic head for writing recording information to the magnetic recording portion of the film cartridge. And a rewriting means for rewriting the recording information of the magnetic recording portion of the film cartridge with the magnetic head.

[0012] A configuration for realizing the object of the third invention according to the present application is the above-mentioned configuration, wherein the film status determination means for determining whether or not the loaded film cartridge is undeveloped; According to another aspect of the present invention, there is provided a camera including a switching unit configured to switch between a shooting operation and a non-shooting operation based on a determination result of the determination unit.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In this embodiment, when a loaded film is an undeveloped film, the same operation as a normal photographing camera is performed, and when the loaded film is a developed film, the loaded film is FIG. 5 shows a camera in which the operation mode of the camera is switched depending on whether a loaded film is developed or undeveloped so as to display the contents of the magnetic information and perform a non-photographing camera operation that enables data rewriting.

(First Embodiment) FIGS. 1 to 5 show a first embodiment.

FIG. 2 is a block diagram showing an electric control system of the camera according to the present embodiment. Reference numeral 1 denotes a microcomputer for controlling the movement of each part of the camera. Reference numeral 2 denotes a lens control circuit that drives and controls a focus adjusting motor of the photographing lens 13 and a motor for controlling aperture blades. Lens control circuit 2
Performs serial communication via DBUS while receiving the LCOM signal from the microcomputer 1. The motor drive information is received by serial communication, and the drive of the motor is controlled by the information. At the same time, various information (focal length etc.) of the lens is sent to the microcomputer 1 by serial communication.

Reference numeral 3 denotes a liquid crystal display circuit for driving the liquid crystal displays 11 and 12 for notifying the photographer of the remaining battery power of the camera, the number of shots, the TV value, the AV value, the exposure correction amount, and the like. . The liquid crystal display circuit 3 performs serial communication via DBUS while receiving the DPCOM signal from the microcomputer 1. Display data is received by serial communication, and the liquid crystal displays 11, 1
2 is driven.

Reference numeral 4 denotes a switch sense circuit, which is a circuit for reading the state of a switch for the photographer to set each photographing condition and a switch indicating the state of the camera and sending the read state to the microcomputer 1, and receiving a SWCOM signal. while,
The switch data is sent to the microcomputer 1 by serial communication via DBUS. The electronic dial 10
The dial value is also counted up / counted down by the input value of
Microcomputer 1 by serial communication via US
Send the count value to.

Reference numeral 5 denotes a flash light emission dimming control circuit which controls a flash emission function and a light emission stop function by TTL light control. The strobe light dimming control circuit 5
While receiving the OM signal, the microcomputer 1 performs serial communication with the microcomputer 1 via DBUS to receive data related to strobe control and perform various controls. This circuit also functions as an interface when an external strobe is attached to the camera. Therefore, when an external strobe is mounted, communication with the external strobe is performed, and the information (whether or not there is an auxiliary light, etc.) is sent to the microcomputer 1. Conversely, it also serves to transmit a control signal from the microcomputer 1 to the external flash 14.

Reference numeral 6 denotes a focus detection circuit, which is a line sensor for performing AF by an existing phase difference detection method and a circuit unit for storing and reading out the data. The microcomputer 1 performs the distance measurement by the existing algorithm based on the A / D value of the sensor output, calculates the lens drive amount, and calculates the lens drive amount by the lens control circuit 2 so that the lens is focused. And drives the lens to focus. Reference numeral 7 denotes a photometry circuit which performs photometry of a subject and sends a photometry output to the microcomputer 1 under the control of the microcomputer 1. The microcomputer 1 converts the sent photometric output into A
/ D conversion and used for calculation of exposure conditions (aperture, shutter speed).

Reference numeral 8 denotes a shutter control circuit which controls the running of a shutter first curtain and a rear curtain (not shown) according to a control signal of the microcomputer 1. Reference numeral 9 denotes a feed motor / charge motor control circuit for feeding (winding and rewinding) the film in accordance with a control signal from the microcomputer 1. The motor control circuit also controls a mirror up / charge (mirror down) motor.

SW1 is a switch linked to a push button for starting the operation of the camera. When the microcomputer 1 recognizes that it has been turned on, it starts photometry, distance measurement and display. SW2 is a switch interlocked with the release button of the camera, and starts the exposure operation when the microcomputer 1 recognizes that it is turned on. The X contact is turned on at the timing when the front curtain of the shutter is completely driven, and serves to notify the flash emission dimming control circuit 5 of the flash emission timing. SW3 is the camera mode (TV priority, A
Switch for switching V priority, manual, program, etc.).

Reference numerals 10a and 10b denote a main electronic dial and a sub electronic dial for changing a TV value, an AV value, a correction amount, a mode, and the like. For example, when the main electronic dial 10a is rotated while pressing the mode switching button of the switch SW3, the mode is changed to TV priority → AV priority → manual → program → TV priority → AV priority → manual → program... Can be set to When the main electronic dial 10a is rotated in the reverse direction, the mode is changed from program to manual, AV priority, TV priority, program, and so on.

If TV priority is set as a mode by the mode change switch SW3 and the main electronic dial, the TV value desired by the photographer can be set by rotating the main electronic dial 10a. . When the AV priority is set as the mode by the mode change switch SW3 and the main electronic dial, the AV value desired by the photographer can be set by rotating the main electronic dial 10a. When the program mode is set by the mode change switch SW3 and the main electronic dial, the program shift for changing the combination of the TV value and the AV value by rotating the main electronic dial 10a becomes possible.

When the manual is set as the mode by the mode change switch SW3 and the main electronic dial 10a, the TV value can be changed by the main electronic dial 10a, and the AV value can be changed by the sub electronic dial 10b. It becomes possible. When the mode other than the manual mode (AV priority, TV priority, program) is set by the mode change switch SW3 and the main electronic dial, the exposure correction can be changed by the sub electronic dial 10b.

A switch SW4 is a push button type AF mode setting switch, a switch SW5 is a push button type photometry mode setting switch, a switch SW6 is a push button type feed mode setting switch, and a switch SW7 is a push button type forced rewind. Switch. The switch SW8 is a push button type title setting switch, and selects a title in combination with the electronic dial 10. The switch SW9 is a push-button type screen size changeover switch for panorama /
Select one of the Classic / Hi-Vision aspect ratios. The main switch is a lock switch for inhibiting operation of the camera.

An external display device 11 is driven by the liquid crystal display circuit 3. Reference numeral 11a denotes a patrone mark indicating whether a film is loaded or not. Reference numeral 12 denotes a finder color liquid crystal display device, which is driven by the liquid crystal display circuit 3.

An interchangeable lens 13 is controlled through the lens control circuit 2. Reference numeral 14 denotes an external flash, which is controlled through the flash light emission dimming control circuit 5. This strobe has a separate power supply from the camera body. Reference numeral 15 denotes a clock module, which is a microcomputer 1
The microcomputer 1 informs the microcomputer 1 of the date and time at the time of communication by request communication.

Reference numeral 16 denotes an undeveloped check circuit. As shown in FIG. 5C, it is determined whether or not the undeveloped display claw 5a of the film cartridge is broken by a mechanical switch (not shown). The microcomputer 1 is notified. This circuit uses a photoreflector (not shown) and a feed motor control circuit 9 (not shown) to drive the data disk 5 shown in FIG.
5A, the loaded film cartridge is unused as shown in FIG. 5A, in the middle of photographing as shown in FIG. 5B, photographed and undeveloped as shown in FIG. A determination of completion of development shown in (d) is made and the microcomputer 1 is notified. Even with this means, it is possible to determine whether development has been completed or not.

Reference numeral 17 denotes a magnetic information reading / writing circuit, which uses the magnetic head 18 to control the microcomputer 1
Is a dedicated circuit for reading data during film winding by the feed motor control circuit and controlling writing during rewinding. Data to be written on the magnetism of the film is transmitted from the microcomputer 1, and the content of the read magnetic information is transmitted to the microcomputer 1.

Next, the display mode in the present embodiment will be described with reference to FIG.

(100): The following flow starts when a film is loaded.

(101): Here, using the undeveloped check circuit 16 in FIG. 2, it is determined whether the loaded film cartridge has been developed or undeveloped.
In addition, it also reads the data disk 5b.

(102): As a result of the determination in (101), if the loaded film cartridge is an undeveloped film, the flow proceeds to (103), and if it is a developed film, the flow proceeds to (107).

(103): It is determined whether or not the result of reading the data disk in (101) is a halfway rewind film.
Proceed to 5), and in the case of a rewinding film halfway, proceed to (104) to wind up to the unexposed portion.

(104): The film is wound up by the feed motor control circuit 9 in order to wind up the film to the unexposed portion to make it ready for photographing. At this time, the film is wound up by a magnetic information reading / writing circuit while checking whether or not the magnetic information is written, and the film is stopped at a frame where no information is written. That is, if no magnetic information has been written, it is determined that exposure has not been performed.

(105): The photographing mode shown by the flow in FIG. 3 is executed.

(106): End.

(107): The non-photographing mode (magnetic information reading / display / change writing mode of the developed film) shown in the flow of FIG. 4 is executed.

Next, the camera photographing operation (105) in the photographing mode will be described with reference to the flowchart of FIG.

(300): This is a state in which the power of the camera is turned on due to factors such as pressing of various switches of the camera, and the process proceeds to (301).

(301): Here, based on the information of the switch sense circuit 4, the mode is switched and the set value is switched, and if there is a change, the liquid crystal drive circuit 3 is communicated.
Modify the display data. Here, the title and the like, which are the information of the IX 240, are also selected or changed, and the information is stored in the memory in the microcomputer 1.

(302): It is determined whether the switch SW1 is pressed or not. If the switch SW1 is pressed, the process proceeds to (306) for photometry / distance measurement. The process proceeds to a determination (303) as to whether or not to turn OFF.

(303): It is determined whether or not the power is to be turned off. If the power is to be turned off, the process proceeds to (304) to turn off the power.
If not, the process returns to (301) switch information input. That is, when the power of the camera is turned on for some reason, the power is kept on for a certain period of time to check the state of the switch and switch the display.

(304): The display of unnecessary portions inside and outside the viewfinder of the camera is turned off by the liquid crystal display circuit 3, and the power is turned off.

(305): End.

(306): Photometry of the object is performed by the photometric circuit 7, and the photometric output is
/ D conversion to calculate exposure conditions (aperture, shutter speed).

(307): Using the focus detection circuit 6, the data is accumulated in the line sensor, read out, the distance is measured by the existing algorithm based on the A / D value of the sensor output, and the lens drive amount is calculated. Is calculated, and the lens drive amount calculated by the calculation is communicated to the lens control circuit 2 so that the lens is focused.
Drive the lens to focus.

(308): AV calculated in (306)
The value / TV value is displayed on the liquid crystal 12 in the finder and the external display 11 by the liquid crystal display circuit 3. If the result of the distance measurement in step (307) is in focus, focus display is also performed.

(309): Here, it is determined whether or not the state of the camera is a state in which the release is permitted. For example,
If the AF mode is the “one-shot mode”, if the result of the distance measurement in (307) is in focus, the release is permitted if it is in focus, and proceed to (310) to check the switch SW2; Return to (301) to check the switch. Here, when the switch SW1 is ON, photometry / distance measurement / display is performed again.

(310): Here, it is determined whether or not the switch SW2 is pressed, and it is determined whether or not to proceed to the release operation after (311). Switch SW2 is O
If N, proceed to (311) to perform the release operation,
If the switch SW2 is OFF, the process returns to (301) to check the switch. Here, the switch SW1 is set to O
In the case of N, photometry / distance measurement / display is performed again.

(311): The release operation is started from here. Here, the mirror is raised by the feed motor / charge motor control circuit 9 and (30
The aperture amount determined in 6) is communicated to the lens 13 by the lens control circuit 2, and the aperture operation is performed to obtain the set exposure amount.

(312) Using the shutter control circuit 8, the running control of the shutter first curtain and the rear curtain (not shown) is performed so that the TV amount determined in (306) is obtained.

(313): Here, the shutter is charged at the same time as the mirror is lowered by the feed motor / charge motor control circuit 9, and the lens control circuit 2 communicates with the lens 13 by the lens control circuit 2 in (306) to narrow down. Return the aperture that was set to full aperture.

(314): The film is wound using the feed motor / charge motor control circuit 9 in accordance with the control signal from the microcomputer 1.

(315): The shutter speed and aperture value at the time of exposure, the focal length of the lens, the brightness, and the exposure correction amount are stored in the memory in the microcomputer 1. The above is the camera operation in the shooting mode.

Next, the operation (107) in the non-photographing mode will be described with reference to the flowchart of FIG.

(400): Beginning.

(401): The film is wound up to the second frame using the feed motor control circuit. At this time, the magnetic information of the first frame is read using the magnetic read / write circuit 17.

(402): The shutter speed, the aperture value, the exposure correction amount, and the screen size (panorama / classic / high-vision) of the magnetic information read in (401) are displayed.

(403): Here, the input of the operation member is performed in the same manner as in (301).

(404): According to the operation of (403),
Switches the display. For example, when a title setting operation is performed, the title number written in the magnetic information of the film is displayed first, and when another title is selected by the operation of the electronic dial 10 or the like, the selected title is displayed. Display the number. When a screen size switching operation is performed, a display corresponding to the operation is displayed. Further, here, the changed contents of the magnetic information read first are stored in the memory inside the microcomputer 1.

(405): Here, it is confirmed whether or not the switch SW2, which is the release button, has been pressed. If the switch SW2 has been pressed, the process proceeds to (409) to display / change the magnetic information of the next frame. If it is determined that the button has not been pressed, the process proceeds to (406) to determine whether or not the button of the forced rewind switch SW7 has been pressed.

(406): It is determined whether or not the forced rewind button of the switch SW7 has been pressed. If it is determined that the button has been pressed, the process proceeds to (407) in order to write the information changed so far to the film. Proceed and if not pressed (4
Return to 03).

(407): In order to write the changed information into the magnetic information of the film, the magnetic information reading / writing is performed while the film is rewound using the feed motor control circuit 9.
Using the writing circuit 17, the changed part stored in the microcomputer 1 is rewritten. If the writing has been completed, the film is wound up, the data disc is stopped at the developed position, and the motor is stopped.

(408): End.

(409): In order to read the magnetic information of the next frame, the magnetic information reading / writing circuit 17 is wound while the film is wound up by one frame using the feed motor control circuit 9.
To read the magnetic information of the piece.

(410): Like (402), (40)
The shutter speed, aperture value, exposure correction amount, and screen size (panorama / classic / high-vision) of the magnetic information read in 9) are displayed. The above is the camera operation in the non-photographing mode.

According to the present embodiment, when the loaded film cartridge is undeveloped, the same operation as that of a normal photographing camera is performed, and when the loaded film cartridge is developed, the magnetic information of the loaded film is Is displayed, and a non-photographing camera operation for enabling data rewriting is performed to enable display and change of the film data of the developed film cartridge without using another device other than the camera.

(Second Embodiment) FIG. 6 shows a second embodiment.

In this embodiment, in order to prevent the changed magnetic information of the developed film from being changed unnecessarily,
An embodiment in which operation modes are limited by various operation members of the camera will be described with reference to a flowchart of FIG.

The flowchart of FIG. 6 relates to the non-photographing mode (107).

(600): Beginning.

(601): Here, it is determined whether or not the operation member of the camera has changed.
02), and if there is no change, return to (600).

(602): Here, it is determined whether or not the changed operation member is acceptable in the non-photographing mode. If the operation member is acceptable, the process proceeds to (603) and may be accepted. If not, go to (606). Here, the operation members that can be accepted include a screen size switch (aspect switching) switch SW9 and a title change switch, and the operation members that cannot be accepted are:
Exposure compensation settings, aperture settings, and shutter speed setting members, which are meaningful data written at the time of shooting, and become meaningless if they are rewritten carelessly later.

(603): Switch information is input according to the operation, and the display is switched. For example, when a title setting operation is performed, the title number written in the magnetic information of the film is displayed first, and when another title is selected by the operation of the electronic dial 10 or the like, the selected title is displayed. Display the number. When a screen size switching operation is performed, a display corresponding to the operation is displayed.

(604): Here, it is determined whether or not an operation of determining whether or not to determine the above change has been performed. If the operation has been performed, the process proceeds to (605) to record setting information, and If no operation has been performed, the recording of the setting information is skipped, and the process proceeds to (606). Here, the change determination operation member may be prepared for exclusive use or may be shared. (605): Here, the contents of the magnetic information changed in (603) are stored in the memory inside the microcomputer 1.

(606): Here, it is determined whether or not the release button switch SW2 has been pressed. If it is determined that the release button switch SW2 has not been pressed, the process returns to (601). If it is determined that the release button switch SW2 has been pressed, the next Proceed to (607) to proceed to the next piece.

(607): It is checked whether or not the film has been wound up to the last frame. If it is the last frame, the change is determined and the data stored in the microcomputer 1 is written to (609) in order to write the data stored in the microcomputer 1 to the magnetic recording portion of the film. If it is not the last frame, the process proceeds to (608) to read the data of the next frame.

(608): In order to read the magnetic information of the next frame, the feed motor control circuit 9
Magnetic information reading / writing circuit 1 while winding up pieces
7, the magnetic information of the frame is read.

(609): In order to write the changed information into the magnetic information of the film, the feed motor control circuit 9 is used to rewind the film while reading the magnetic information.
Using the writing circuit 17, the changed part stored in the microcomputer 1 is rewritten. When the writing is completed, the film is wound up, the data disk is stopped at the developed position, the lid of the film cartridge is closed, and the motor is stopped.

(610): End.

According to the above embodiment, by limiting the operation members according to the operation mode of the camera, data is not rewritten carelessly.

(Third Embodiment) In the present embodiment,
Two examples will be described in which the user can directly determine whether the camera mode is the shooting mode or the non-shooting mode.

FIG. 7 shows an example in which the film cartridge mark blinks to indicate that the film is not a photographable film and indicates that the film is not in the photographing mode. FIG. It is an example showing that this is the case.

The flowcharts of FIGS. 7 and 8 are added to step (101) of FIG.

(700): Beginning.

(701): Here, it is determined whether the loaded film has been developed or undeveloped by using the undeveloped check circuit 16 of FIG. Here, if it is determined that the film has been developed, the process proceeds to (704) to indicate that the film is in the non-photographing mode. If it is determined that the film is undeveloped, it is necessary to indicate that the film is in the shooting mode. Proceed to (702).

(702): Communication with the liquid crystal display circuit 3 is made to indicate the photographing mode, and the patrone mark 11a is lit on.

(703): End.

(704): In order to indicate that the camera is in the non-photographing mode, it communicates with the liquid crystal display circuit 3 and blinks the patrone mark 11a.

On the other hand, in the flowchart of FIG. 8, (800): start.

(801): Here, it is determined whether the loaded film has been developed or undeveloped by using the undeveloped check circuit 16 in FIG. Here, if it is determined that the film has been developed, the process proceeds to (804) to indicate that the film is in the non-photographing mode. If it is determined that the film is undeveloped, it is necessary to indicate that the film is in the shooting mode. Proceed to (802).

(802): The external display 11 and the finder display 12 are both displayed by communicating with the liquid crystal display circuit 3 in order to indicate the shooting mode.

(803): End.

(804): Communication with the liquid crystal display circuit 3 is made to indicate that the mode is the non-photographing mode.
Is displayed, and the finder display 12 is turned off.

By using the above-described embodiment, it is possible for the user to clearly recognize the operation mode of the camera.

(Fourth Embodiment) FIG. 9 shows a fourth embodiment.

In this embodiment, an example for coping with a very large number of magnetic information formats will be described with reference to FIG.

The flowchart shown in FIG. 9 includes the flowchart of FIG.

(900): Beginning.

(901) Here, it is determined using the feed motor control circuit 9 and the magnetic information read / write circuit 17 whether or not a specific mark is written on the magnetic information in the film reader. Here, the specific mark is
This is special data to be written when shooting with a camera that has this function.

(902): The processing shown in the flowchart of FIG. 1 is executed. That is, when the loaded film cartridge is an undeveloped film, the photographing mode is executed, and when the film cartridge is a developed film, the non-photographing mode is executed.

(903): End.

(904): A warning display is issued using the liquid crystal display circuit 3 to indicate that the film is a developed film that does not match the function of this camera.

It is very difficult for the camera body to support a very large number of magnetic information formats. However, by using this embodiment, by enabling this function only for a specific format, the camera body can be used. The load can be reduced, leading to commercialization.

[0106]

According to the first aspect of the invention, the information recorded in the magnetic recording section of the loaded film can be displayed by the camera itself without using a special device or the like.

According to the second aspect, the information recorded in the magnetic recording section of the loaded film can be rewritten by the camera itself without using a special device.

According to the third aspect, the photographing operation and the magnetic information reading operation can be automatically performed depending on whether or not the loaded film has been developed.

Further, according to the fourteenth aspect, it is possible to cope with an extremely large number of magnetic information formats.

[Brief description of the drawings]

FIG. 1 is a flowchart showing a first embodiment of the present invention.

FIG. 2 is a block diagram of the camera according to the first embodiment.

FIG. 3 is a flowchart illustrating a shooting mode according to the first embodiment;

FIG. 4 is a flowchart illustrating a non-photographing mode according to the first embodiment.

FIGS. 5A to 5D are views showing a state of a film cartridge.

FIG. 6 is a flowchart illustrating a second embodiment.

FIG. 7 is a flowchart illustrating an example of a third embodiment.

FIG. 8 is a flowchart showing another example of the third embodiment.

FIG. 9 is a flowchart illustrating a fourth embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Microcomputer 2 ... Lens control circuit 3 ... Liquid crystal display circuit 4 ... Switch sense circuit 5 ... Strobe light emission / dimming control circuit 6 ... Focus detection circuit 7 ... Photometry circuit 8 ... Shutter control circuit 9 ... Motor control circuit 10 ... Electronics Dial 11 ... External display member 12 ... Internal display member 13 ... Interchangeable lens 14 ... External strobe 15 ... Watch module 16 ... Undeveloped check circuit / data disk read circuit 17 ... Magnetic information read / write control circuit 18 ... Magnetic information read / Write magnetic head

──────────────────────────────────────────────────続 き Continued on front page (51) Int.Cl. ⁶ Identification code FI G03C 3/00 599 G03C 3/00 599B

Claims (12)

[Claims] 1. A camera which can be loaded with a film cartridge having a magnetic recording portion and has a magnetic head for reading recorded information of the magnetic recording portion of the film cartridge, wherein the magnetic recording portion of the film cartridge read by the magnetic head is provided. A display processing means for displaying the recorded information on the display means. 2. A camera capable of loading a film cartridge having a magnetic recording section and having a magnetic head for writing recording information to the magnetic recording section of the film cartridge, wherein the recording information of the magnetic recording section of the film cartridge is A camera comprising rewriting means for enabling rewriting with a magnetic head. 3. A camera which can be loaded with a film cartridge having a magnetic recording portion and has a magnetic head for writing and reading recording information to and from the magnetic recording portion of the film cartridge, wherein the film read by the magnetic head is provided. A camera comprising: a display processing unit for displaying recording information of a magnetic recording unit of a cartridge on a display unit; and a rewriting unit for rewriting recording information of a magnetic recording unit of the film cartridge by the magnetic head. 4. A film state judging means according to claim 1, 2 or 3, wherein said film state judging means judges whether or not the loaded film cartridge has not been developed, and a photographing operation based on the judgment result of said film state judging means. A switching unit for switching a non-photographing operation. 5. The non-photographing operation according to claim 4,
A camera for operating the display processing means. 6. The camera according to claim 4, wherein said switching means uses a release operation member. 7. The camera according to claim 4, wherein the switching means uses a film rewind start switch as a rewriting start member. 8. The camera according to claim 4, wherein the switching means accepts different operation members depending on the non-shooting operation mode. 9. The camera according to claim 4, wherein a display state is made different depending on an operation mode of a photographing operation and a non-photographing operation. 10. The camera according to claim 9, wherein a display for confirming the presence or absence of a film is turned on in a photographing operation mode, and blinks in a non-photographing mode. 11. The display device according to claim 9, wherein in the photographing operation mode, the external display means and the viewfinder display means are displayed, and in the non-photographing mode, only the external display means is displayed without displaying the viewfinder display means. Features camera. 12. The method according to claim 1, wherein the specific information for executing the operation is recorded in a magnetic recording unit in a film reader unit of the film cartridge, and the operation is executed by reading the specific information. A camera characterized in that: