Photographic camera with film speed setting system

• US 4,200,371 A
• Filed: 10/12/1977
• Issued: 04/29/1980
• Est. Priority Date: 10/15/1976
• Status: Expired due to Term

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Suzuki, Ryoichi, Uchiyama, Takashi, Taguchi, Tetsuya, Tezuka, Nobuo, Suzuki, Toyotosi, Sanada, Noriaki
• Primary Examiner(s): Gellner, Michael L.
• Assistant Examiner(s): Perkey, William B.
• Application Number:
  US05/841,469
• Time in Patent Office: 930 Days
• Field of Search: 354/21, 354/289, 354/28, 354/37, 354/32, 354/33, 354/41, 354/31, 354/48, 354/50, 354/51, 354/58, 354/59, 354/60 R, 354/60 E, 354/60 L, 354/127, 354/128, 354/268, 354/53, 354/171 , 354/173, 354/217, 354/218, 354/53, 354/149, 352/78 C
• US Class Current: 396/208
• CPC Class Codes: G03B 7/00 Control of exposure by setting shutters, diaphragms or filters, separately or conjointly control of exposure in television cameras by means of circuitry influencing the optical part of the camera H04N23/75
• CPC Class Codes: G03B 7/24 automatically in accordance with markings or other means indicating film speed or kind of film on the magazine to be inserted in the camera

Abstract

A manually operable or automatic film speed setting system adapted for use in an electronic exposure control apparatus of a photographic camera. When a film cartridge having an electrically conductive marker representative of the sensitivity of film therein is loaded in the camera, information representative of film speed is automatically introduced into the exposure value computer regardless of the manually switched position of the inherent film speed dial different from that for the sensitivity of the used film.

Claims

1. A film sensitivity setting system for a camera comprising:

1. a camera body having;

(a) light measuring means for producing an electrical signal representative of the level of brightness of an object to be photographed;

(b) exposure value computing means having a reference signal producing means and receptive of the output of said light measuring means for computing an exposure value;

(c) memory means for memorizing the output of said exposure value computing means;

(d) changeover means responsive to the release actuation of the camera for changing over the outputs of said exposure value computing means and memory means;

(e) manual film sensitivity setting means cooperative with an operating member manually operable from the outside of the camera for producing an electrical signal corresponding to the set film sensitivity value; and

(f) comparing means having a reference signal producing means for producing shutter time information;

2.

4. sensing means. 2. A film sensitivity setting system according to claim 1, further including:

(a) exposure level correcting means including

(i) exposure level correction information producing means cooperative with an operating member manually operable from the outside of the camera and having converting means for producing an electrical signal corresponding to the correction information; and

(ii) correction information control means connected to said correction information producing means and said exposure value computing means for introducing correction information into said exposure value computing

5. means to perform correction of exposure level. 3. A film sensitivity setting system according to claim 1, further comprising auto-film display means which displays that an auto-film is in use, said means including:

(1) a film counter mechanism which counts the number of film frames in response to a film winding operation of the camera;

(2) switch means which opens in response to the counting action of said film counter mechanism when a predetermined number of film frames have been counted after commencement of the count; and

(3) light-emitting display means connected to said automatic film sensitivity setting means through said switch means, said light-emitting display means being arranged to receive the output signal of said automatic film sensitivity setting means to display that the auto-film is in use by emitting a light in response to said signal until a predetermined number of film frames are counted by said film counter mechanism.

6. A film sensitivity setting system according to claim 1, wherein said switching means have multi-collector transistor elements.

8. A film sensitivity setting system according to claim 5, further including:

camera operation inhibiting means having;

(a) a magnet means connected in parallel with said light-emitting element upon power supply of said closed circuit to be controlled for energization; and

(b) a shutter release inhibiting member arranged to be attracted by the energized magnet means to inhibit actuation of shutter release.

2. automatic film sensitivity setting means including:

(a) film signal sensing means having sensing terminals arranged to contact with a signal part provided on a film container;

(b) film sensitivity information producing means having a plurality of time constant circuits connected to the sensing terminals of said sensing means;

(c) film sensitivity information output control means connected to said sensing means and said time constant circuit group and responsive to the output of said sensing means for controlling the output of the time constant circuit; and

(d) manual setting means ineffecting means connecting to said manual film sensitivity setting means and said film sensitivity information producing means and responsive to the output of said sensing means for rendering ineffective the output of said manual film sensitivity setting means; and

3.

3. circuit changeover means selectively connecting the manual film sensitivity setting means and the film sensitivity information producing means with comparing means and operating in response to the output of said

7. A film sensitivity setting system for a camera comprising:

(a) film sensitivity signal sensing means having a plurality of sensing terminals arranged to contact with a signal part of a film container and constituting switching means of which opening and closing operation is controlled by the signal part of the film container;

(b) switching means cooperative with a manually operable film sensitivity setting dial to be opened when a predetermined film sensitivity value is selected; and

(c) monitoring means having a light-emitting element positioned to constitute a closed circuit together with said sensing terminals and said switching means so that the energization of said light-emitting element is controlled by said manually operable film sensitivity setting dial.

11. A film sensitivity setting system according to claim 7, wherein said switching means of said film sensitivity monitoring means comprises:

(a) a conductive terminal arranged to contact with the sensing terminal of said film signal sensing means; and

(b) a rotary member having conductive and insulating parts arranged in contact with the opposite end of said conductive terminal upon rotation of said dial to control electrical power supply to said light emitting means.

12. A film sensitivity setting system according to claim 7, further including camera operation inhibiting means having:

(a) a magnet means connected in parallel with said light-emitting means upon closure of said switching means to be controlled for energization;

(b) a shutter release inhibiting member arranged to be attracted by the energized magnet means to inhibit actuation of shutter release.

13. A film sensitivity setting system according to claim 7, further including film container sensing means connected to said film sensitivity sensing monitoring means upon detection of whether or not the film container is loaded in the camera to control electrical power supply to said monitoring means.

15. An automatic film sensitivity setting system according to claim 11, wherein said cut-off means which cuts off the output signal of said manual film sensitivity setting means includes a semiconductor switching circuit.

16. An automatic film sensitivity setting system according to claim 11, wherein said first converting means is formed by connecting a plurality of resistors in series, said resistors being connected according to the positions in said signal part of the film container at which said sensing terminals of the film sensitivity signal sensing means come into contact, said first converting means being arranged to produce an electrical signal corresponding to a composite value of said resistors.

17. An automatic film sensitivity setting system according to claim 11, wherein said film sensitivity signal sensing means are arranged so that said sensing terminals are insulated by an insulating member and are rotatably carried by a shaft in the vicinity of a film container loading chamber of the camera so as to be caused to rotate in the direction in which they are caused to come into contact with said signal part of the film container by a closing action of a rear cover of the camera.

18. An automatic film sensitivity setting system according to claim 11, wherein said film sensitivity signal sensing means are arranged so that one end of each of said sensing terminals is fixedly supported while the other end thereof protrudes from an opening provided in the circumferential wall of a cartridge chamber into the chamber and is urged toward the bottom part of the chamber to come into resilient contact with said signal part which is provided on a outer circumferential face of the film container.

19. An automatic film sensitivity setting system according to claim 11, further comprising display means which displays the fact that an auto-film is in use, said display means including:

(a) a film counter mechanism which counts the number of film frames in response to a film winding operation of the camera;

(b) switch means which opens in response to the counting action of said film counter mechanism when a predetermined number of film frames have been counted after commencement of the count; and

(c) light-emitting display means connected to said automatic film sensitivity setting circuit through said switch means, said light-emitting display means being arranged to have power supply thereto controlled through said switch means until a predetermined number of film frames have been counted by said film counter mechanism and to display that an auto-film is in use by emitting a light in response to the output signal of said automatic film sensitivity setting circuit, emission of the display light being stopped by an opening action of said switch means.

20. An automatic film sensitivity setting system for a camera according to claim 11, further including confirming means for confirmation of the type of film with which the camera is loaded, said means being provided with a switching means which can be opened and closed from the outside of the camera and with light-emitting display means which is connected to said automatic film sensitivity setting circuit through said switching means to have power supply thereto controlled by the switching means, said light-emitting display means being caused by closing of said switching means to display with emission of a light the use or non-use of an auto-film.

21. An automatic film sensitivity setting system according to claim 11, further including display means for displaying the sensitivity of the auto-film with which the camera is loaded, said means being provided with:

(a) a film sensitivity confirmation switch which can be opened and closed from the outside of the camera; and

(b) a group of light-emitting elements which are arranged on the top panel of a camera housing and are electrically connected between said film sensitivity confirmation switch and each switching means, said light-emitting elements being arranged to have power supply thereto controlled by closing of said film sensitivity confirmation switch in such a manner that a light-emitting element representative of a film sensitivity value corresponding to the sensing terminal which is closed by said switching means comes to emit a light to display the sensitivity of film in said film container with which the camera is loaded.

22. An automatic film sensitivity setting system according to claim 11, wherein said film sensitivity signal sensing means has the following structural arrangement:

(a) an engaging abutment part is provided adjacent to the film container loading chamber of the camera for carrying the film exit part of said film container by engaging therewith; and

(b) one end of each of said sensing terminals being secured to a circumferential wall portion of the film container loading chamber and the other end extends in the direction of said engaging part to come into contact with said signal part formed at the film exit part of said film container when the film container is mounted on the camera.

23. An automatic film sensitivity setting system according to claim 19, further having the following structural arrangement:

on the inner side of the rear cover of the camera, there is provided a presser which presses one end of each of said sensing terminals extending to the engaging part of the film exit part against a marker formed at said film exit part.

26. An exposure control system according to claim 21, including display means which displays that an auto-film is in use, said display means comprising:

(a) a film counter mechanism which counts the number of film frames in response to a film winding operation of the camera;

(b) switch means which opens in response to the counting action of said film counter mechanism when a predetermined number of film frames have been counted after commencement of the count; and

(c) light-emitting display means connected to said automatic film sensitivity setting means through said switch means, said light-emitting display means being arranged to have power supply thereto controlled through said switch means until a predetermined number of film frames have been counted by said film counter mechanism and to display that an auto-film is in use by emitting a light in response to the output signal of said automatic film sensitivity setting means, the emission of the display light being arranged to be stopped by an opening action of said switch means.

27. An exposure control system according to claim 22, further including confirming means for confirming that an autofilm is in use, said means being provided with a second switch means which is connected in parallel to said switch means and is operable from the outside of the camera for confirmation of the use or non-use of an auto-film by said light-emitting display means through the output signal of the automatic film sensitivity setting means.

32. A film sensitivity setting system according to claim 26, further including:

(a) light measuring means for measuring the brightness of an object to be photographed; and

(b) switching means operable from the outside of the camera, said switching means being arranged to selectively supply information produced by said light measuring means, range adjustment information produced by said range adjustment information input means or flash light information of said flash light device to said exposure control means to effect thereby shifting between flash light and daylight photographing operations.

9. A film sensitivity setting system for a camera comprising:

1. a camera body having exposure control means responsive to the object brightness, and shutter time control information, or diaphragm control information for controlling exposure;

2. manual film sensitivity setting means having;

(a) a manually operable film sensitivity setting dial; and

(b) first converting means connected to an exposure value computing means for producing an electrical signal corresponding to the amount of rotation of said dial;

3. film sensitivity resetting means having;

(c) a rotatable lever arranged to be rotated in response to opening and closing operation of the back cover of the camera; and

(d) a driving member for said manual setting dial cooperative with said rotatable lever upon opening and closing operation of the back cover of the camera to reset said manual setting dial to the initial position; and

10. film sensitivity monitoring means having:

(e) film sensitivity signal sensing means having sensing terminals arranged to contact with a signal part of the film container;

(f) light-emitting means arranged to be energized when the dial is in the initial position; and

(g) switching means connected to said light-emitting means upon rotation of said dial to control electrical power supply to said light emitting means.

14. An automatic film sensitivity setting system for a camera having a control circuit which performs exposure control according to information related to the brightness of an object to be photographed, said system comprising:

(a) an automatic film sensitivity setting circuit including;

(1) film sensitivity signal sensing means having a plurality of sensing terminals arranged to contact with a signal part of a film container and constituting contact means, the contact operation of which is controlled by the signal part of the film container; and

(2) first converting means for producing an electrical signal corresponding to the sensitivity of film for automatic setting, the first converting means being arranged to produce film sensitivity information corresponding to each of said contact means;

(b) manual film sensitivity setting means having second converting means for forming an electrical signal representative of a film sensitivity value and arranged to cooperate with an operating member and being manually operable from the outside of the camera; and

(c) automatic film sensitivity selecting means provided with cut-off means which automatic film sensitivity selecting means is connected to said manual film sensitivity setting means to cut off the supply of the output signal of said manual film sensitivity setting means in response to the output signal of said first converting means.

24. An exposure control system for a camera comprising:

1. manual film sensitivity setting means having a first converting means for forming an electrical signal representative of a film sensitivity and being arranged to cooperate with an operating member manually operable from the outside of the camera;

2. automatic film sensitivity setting means including;

(a) film sensitivity signal sensing means having a plurality of sensing terminals arranged to contact with a signal part of a film container and constituting contact means, the contact operation of which being controlled by the signal part of said film container; and

(b) second converting means for producing an electrical signal corresponding to the sensitivity of film adapted for automatic film sensitivity setting, said second converting means being arranged to produce film sensitivity information based on the operation of said contact means;

30. An exposure control system for a camera according to claim 24, further including exposure level display means provided with light-emitting display means connected to said exposure level correction information producing means, said level display means thus being arranged to display, by emitting a light, an exposure level corrected in response to the signal from said exposure level correction information producing means.

36. A film sensitivity setting system according to claim 30, wherein said detecting means further includes electromagnetic means, the operation of which is controlled by said film signal sensing means and switch means which is opened and closed by the operation of said operating means for automatic film sensitivity setting to perform control of power supply to said electromagnetic means.

37. A film sensitivity setting system according to claim 30, further including film sensitivity information display means having:

(a) a display part which displays film sensitivity graduations in such a manner that the display is observable from the outside of the camera;

(b) manual film sensitivity setting value indicating means which indicates a manual setting value of film sensitivity by moving said display part in response to said manual film sensitivity setting means; and

(c) automatic film sensitivity setting value indicating means which moves together with said operating means for automatic film sensitivity setting to evacuate said manual film sensitivity setting value indicating means to the outside of the visually observable range of said display part in response to the operation of said operating means for automatic film sensitivity setting.

25. exposure control means electrically connected to said manual film sensitivity setting means and to said automatic film sensitivity setting means, said exposure control means including:

(a) light measuring means for measuring the brightness of an object to be photographed;

(b) shutter time information producing means having third converting means for producing an electrical signal corresponding to a setting value of shutter time; and

(c) exposure value computing means connected to said light measuring means and said shutter time information producing means and selectively connected to said manual film sensitivity setting means or to said automatic film sensitivity setting means to compute an exposure value required for effecting proper exposure; and

4. automatic film sensitivity selecting means which is connected to said manual film sensitivity setting means and to automatic film sensitivity setting means and is provided with cut-off switching means which cuts off the output signal of said manual film sensitivity setting means according to the contact operation of said contact means to prevent it from being supplied to said exposure control means.

28. An exposure control system for a camera which permits automatic film sensitivity setting, said system comprising:

1. manual film sensitivity setting means having a first converting means for forming an electrical signal representative of a film sensitivity value, said setting means being arranged to cooperate with an operating member manually operable from the outside of the camera;

2. automatic film sensitivity setting means including;

(a) film sensitivity signal sensing means having a plurality of sensing terminals arranged to contact with a signal part of a film container and constituting contact means, contact operation of which is controlled by the signal part of the film container; and

(b) second converting means for producing an electrical signal corresponding to the sensitivity of film adapted to automatic film sensitivity setting, said means thus being arranged to provide film sensitivity information based on the contact operation of said contact means;

34. An exposure control system for a camera according to claim 28, further comprising display means which displays that an auto-film is in use, said display means including:

(a) a film counter mechanism which counts the number of film frames in response to a film winding operation of the camera;

(b) switch means which opens in response to the counting action of said film counter mechanism when a predetermined number of film frames have been counted after commencement of the count; and

(c) light-emitting display means connected to said automatic film sensitivity setting means through said switch means, said light-emitting display means being arranged to receive the output signal of said automatic film sensitivity setting means to display that the auto-film is in use by emitting a light in response to said signal until a predetermined number of film frames are counted by said film counter mechanism.

29. automatic film sensitivity selecting means which is connected to said manual film sensitivity setting means and so said automatic film sensitivity setting means and is provided with switching means for cutting off the output signal of said manual film sensitivity setting means is response to the output signal of said automatic film sensitivity setting means;

4. an exposure level correcting circuit including;

(a) exposure level correction information producing means cooperative with an operating member manually operable from the outside of the camera and having third converting means for producing an electrical signal corresponding correction information; and

(b) a first computing circuit selectively connected to said manual film sensitivity setting means, to said automatic film sensitivity setting means or to said exposure level correcting circuit to compute and control, according to the output of said automatic film sensitivity selecting means, a film sensitivity value manually set or automatically set through an auto-film and the exposure level correction information; and

5. exposure control means connected to said exposure level correcting circuit, said means including;

(a) light measuring means for measuring the brightness of an object to be photographed;

(b) exposure factor information input means having fourth converting means for producing an electrical signal corresponding to set exposure factor information; and

(c) exposure valve computing means provided with second computing mean which performs exposure computation by receiving signals from said light measuring means, said exposure factor information input means and said first computing means, said exposure valve computing means thus being arranged to produce exposure information based on a film sensitivity setting value obtained either manually or automatically.

31. A film sensitivity setting system for a camera which permits the mounting of a flash device thereon, said system comprising:

(a) manual film sensitivity setting means having a first converting means for forming an electrical signal representative of a film sensitivity value, said setting means being arranged to cooperate with an operating member manually operable from the outside of the camera;

(b) automatic film sensitivity setting means including;

(1) film sensitivity signal sensing means having a plurality of sensing terminals arranged to contact with a signal part of a film container and constituting contact means, the contact operation of which is controlled by the signal part of said film container; and

(2) second converting means for producing an electrical signal corresponding to the sensitivity of film adapted for automatic film sensitivity setting, said means thus being arranged to provide film sensitivity information based on the contact operation of said contact means;

(c) automatic film sensitivity selecting means which are connected to said manual film sensitivity setting means and to said automatic film sensitivity setting means and are provided with switching means for cutting off the output signal of said manual film sensitivity setting means in response to the output signal of said automatic film sensitivity setting means;

(d) shutter time information producing means for flash photography, said means being arranged to produce fixed shutter time information;

(e) range adjustment information input means for producing an electrical signal in response to a range adjusting operation;

(f) an electrical signal terminal provided for connecting said range adjustment information input means to said flash light device to supply the flash information of the flash device to the camera; and

(g) exposure control means provided for computing a correct diaphragm aperture value by receiving information of said manual film sensitivity setting means or said automatic film sensitivity setting means according to the operation of said automatic film sensitivity selecting means and also by receiving said fixed shutter time information, range information and information of the flash of said flash light device.

33. An exposure control system for a camera which permits both automatic and manual setting of film sensitivity information, said system comprising:

(a) a light measuring circuit for measuring the brightness of an object to be photographed;

(b) manual aperture setting value information input means having a first converting means, said input means being arranged to produce an electrical signal corresponding to information of the setting aperture value;

(c) a manual film sensitivity setting circuit having a first time constant circuit which, by action of an operating member operable from the outside of the camera, produces an electrical signal corresponding to the setting value of said operating member;

(d) a computation circuit which receives signals from said manual setting aperture value information input means and from said light measuring circuit and produces exposure information corresponding to brightness information and the aperture setting value;

(e) automatic film sensitivity setting means including;

(1) film signal sensing means having sensing terminals which are capable of contacting a signal part which is provided on a film container representing the sensitivity of the film contained in said film container; and

(2) electrical signal producing means for producing an electrical signal corresponding to the sensitivity of a film adapted for automatic film sensitivity setting;

(f) manual exposure time information producing means arranged to produce exposure time information corresponding to the exposure information produced by said computation circuit and to the manual setting film sensitivity information produced by said manual film sensitivity setting means;

(g) automatic exposure time information producing means arranged to produce exposure time information corresponding to the exposure information produced by said computation circuit and to the sensitivity information on the film adapted for automatic film sensitivity setting produced by said automatic film sensitivity setting means;

(h) shutter means;

(i) shutter control means electrically connected selectively to said manual exposure time information producing means or to said automatic exposure time information producing means, said control means being arranged to control said shutter means according to the exposure time information produced by either said manual or automatic exposure time information producing means; and

(j) automatic film sensitivity selecting means which is provided with a circuit electrically connected to said manual film sensitivity setting circuit and to said automatic film sensitivity setting means to render said manual film sensitivity setting circuit inoperative in response to the output signal of said automatic film sensitivity setting means and which is also provided with switching means arranged to selectively connect said manual exposure time information producing means or said automatic exposure time information producing means to said shutter control means, said automatic film sensitivity selecting means being arranged to control said circuit and said switching means in response to the output signal of said automatic film sensitivity setting means.

35. A film sensitivity setting system for a camera, comprising:

(a) a camera body having exposure value computing means responsive to the brightness information of an object to be photographed, shutter control information and diaphragm control information for determining the amount of exposure of film;

(b) converting means which produces information on the sensitivity of film which requires manual sensitivity setting or that of film which is adapted for automatic film sensitivity setting;

(c) charge means provided with a charge member which moves to a preset position in response to an opening or closing action of the rear cover of the camera, said charge member being arranged to be engageable with said converting means and to be capable of performing a reset action on said converting means by charging the converting means to move to a preset position in response to the opening or closing action of the rear cover of the camera;

(d) manual film sensitivity setting means provided with an operating member for manual setting, said operating member being arranged to produce an electrical signal corresponding to the manual setting value of film sensitivity in response to the operation of said converting means; and

(e) automatic film sensitivity setting means including;

(1) film signal sensing means including a plurality of sensing terminals arranged to contact with a signal part of a film container and constituting contact means, the contact operation of which is controlled by said signal part of the film container; and

(2) auto-film detecting means having detection means which automatically detects the autofilm under the control of said film signal sensing means, and operating means for automatic film sensitivity setting which engages said converting means in accordance with a detection signal produced by said detection means and which generates an electrical signal corresponding to the sensitivity of film adapted for automatic film sensitivity setting.

38. A film sensitivity display device for a camera which permits the use of both a high sensitivity film and a low sensitivity film, said device comprising:

(a) film sensitivity display means provided with a meter which displays film sensitivity in such a manner as to permit observation from the outside of the camera;

(b) first converting means which receives information of the brightness of an object to be photographed in a low brightness range and which produces an electrical signal corresponding to the object'"'"'s brightness level;

(c) second converting means which is connected in parallel with said first converting means and receives the object'"'"'s brightness in a high brightness range to produce an electrical signal corresponding to the object'"'"'s brightness level;

(d) contact means having sensing terminals arranged to contact with a signal part provided on a film container, said sensing terminals being electrically connected to said second converting means; and

(e) film sensitivity detecting means which is electrically connected in parallel with both said first and second converting means and is provided with first and second signal forming means for producing electrical signals corresponding to the sensitivity values of the high and low sensitivity films and also with switching means which permits operation thereof from the outside of the camera to effect switching between the electrical connection of said first and second converting means to said film sensitivity display means and the electrical connection of said first and second signal forming means to said film sensitivity display means.

39. Film sensitivity setting means for a camera which permits the use of both a high sensitivity film and a low sensitivity film, said means comprising:

a camera body having an exposure meter circuit responsive to the information of the brightness of an object to be photographed, shutter time control information and diaphragm control information for determining the amount of exposure of the film;

first converting means connected to a light receiving element which receives a light from the object and to said exposure meter circuit to produce information on the film sensitivity in a low sensitivity range;

second converting means connected to said light receiving element and to said exposure meter circuit to produce information of the film sensitivity in a high sensitivity range;

first switching means having sensing terminals arranged to contact with a signal part provided on a film container;

automatic film sensitivity information selecting means electrically connected to said first and second converting means and to said first switching means, said selecting means being provided with transistor switching means which cuts off the signal of said first converting means in accordance with the opening or closing operation of said first switching means; and

second switching means having a switch which is operable from the outside of the camera and is connected in parallel with said first switching means, said second switching means being arranged to cause said selecting means to cut off the signal of said first converting means when the camera is loaded with a film container containing a high sensitivity film and having no signal part and thus to supply information on said high sensitivity film to said exposure meter circuit.

40. A film sensitivity setting system for a camera comprising:

(a) a camera body having exposure control means responsive to information on the brightness of an object to be photographed and to shutter time control information or diaphragm control information for controlling exposure;

(b) manual film sensitivity setting means provided with a film sensitivity setting dial which is manually operable and reset means which resets said dial in response to the opening and closing actions of the rear cover of the camera;

(c) converting means which produces electrical signals corresponding to manual film sensitivity setting information and to automatic film sensitivity setting information, said converting means being arranged to be electrically connected to said exposure control means in response to a manual setting operation of said dial and being arranged to produce this film sensitivity information corresponding to the value of said manual setting operation

(d) automatic film sensitivity setting means provided with;

(1) film sensitivity signal sensing means having a plurality of sensing terminals arranged to contact with a signal part of a film container and constituting contact means, the contact operation of which is controlled by the signal part of the film container; and

(2) one end of said contact means being electrically connected to said exposure control means, the other end of said contact means being electrically connected to said converting means according to the position of the signal part of said film container to produce film sensitivity information corresponding to the contact operation of said contact means; and

(e) display means which is electrically connected to the exposure control means and for indicating an exposure value in correspondence with the sensitivity of the charged film.

41. A film sensitivity sensing system having a film sensitivity display means comprising:

(A) a camera body having;

exposure value computing means responsive to the object brightness, shutter time control information and diaphragm control information for determining the amount of exposure of the film including;

(a) first converting means receiving object brightness in a low sensitivity range to produce an electrical signal corresponding to the object brightness level;

(b) second converting means connected in parallel with said first converting means and receiving object brightness in a high sensitivity range to produce an electrical signal corresponding to the object brightness level;

(c) exposure control means having a condenser connected to said first and said second converting means and connected to said exposure value computing means to produce an exposure control signal; and

(d) first switching means having sensing terminals arranged to contact with a signal part provided on a film container, said sensing terminals being electrically connected between said second converting means and said condenser; and

(B) film sensitivity display means having;

(a) first display means for displaying the loading of a low speed film;

(b) second display means for displaying the loading of a high speed film; and

(c) sensing circuit means having second switching means connected to said first switching means for controlling power supply to said first and said second display means and responsive to the output signal of said sensing terminals for selectively energizing said first or said second display means for display operation.

42. An automatic film sensitivity system for a camera having a control circuit which performs exposure control according to information related to the brightness of an object to be photographed, said system comprising:

(a) an automatic film sensitivity setting circuit including;

(1) film sensitivity information sensing means having a sensing member arranged to receive a signal part of a film container; and

(2) first converting means for producing a converted signal corresponding to the signal part of the film container for automatic setting, the first converting means being arranged to produce film sensitivity information corresponding to the signal of the sensing member;

(b) manual film sensitivity setting means having second converting means for forming a converted signal representative of a film sensitivity value and arranged to cooperate with an operating member and being manually operable from the outside of the camera; and

(c) mode selection means which, in response to the signal of said automatic film sensitivity setting circuit, nullifies the output signal of said manual film sensitivity setting means to bring the camera into an automatic setting mode.