JPS56130731A - No-picture photographing device of camera - Google Patents

No-picture photographing device of camera

Info

Publication number
JPS56130731A
JPS56130731A JP3392180A JP3392180A JPS56130731A JP S56130731 A JPS56130731 A JP S56130731A JP 3392180 A JP3392180 A JP 3392180A JP 3392180 A JP3392180 A JP 3392180A JP S56130731 A JPS56130731 A JP S56130731A
Authority
JP
Japan
Prior art keywords
time
switch
film back
camera
film
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP3392180A
Other languages
Japanese (ja)
Inventor
Nobuo Matsukawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nikon Corp
Nippon Chemical Industrial Co Ltd
Original Assignee
Nippon Chemical Industrial Co Ltd
Nippon Kogaku KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Chemical Industrial Co Ltd, Nippon Kogaku KK filed Critical Nippon Chemical Industrial Co Ltd
Priority to JP3392180A priority Critical patent/JPS56130731A/en
Publication of JPS56130731A publication Critical patent/JPS56130731A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/36—Counting number of exposures

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Details Of Cameras Including Film Mechanisms (AREA)
  • Indication In Cameras, And Counting Of Exposures (AREA)

Abstract

PURPOSE:To expand automatically the range of the numbers of no-picture frames as required a long-sized film back is used, by varying the number of no-picture frames by interlocking a forcible time-adjusting device with a film-frame-number counter at the film back side when the film back is equipped to a camera. CONSTITUTION:When a long-sized film back is used, equipping film back 6 to camera 1 turns on normally closed switch 5 and film frame number counter 7 indicates the O-th-N2-th frames. Then, when the indication of counter 7 exceeds N2, switch 8 turns on. If frame number N1<N2 and O<=N<=N1, switches 4 and 8 are turned off and automatic exposure time-adjusting circuit 3 is not in operation, so that the shutter time will correspond to short-time exposure. If N1<N<=N2, switch 4 is turned on, but switch 8 is off, so that it corresponds to the short-time exposure eventually. When N2<N, switch 8 is also turned on and automatic time- adjusting circuit 3 operates to make TTL-photometric exposure effective.
JP3392180A 1980-03-19 1980-03-19 No-picture photographing device of camera Pending JPS56130731A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3392180A JPS56130731A (en) 1980-03-19 1980-03-19 No-picture photographing device of camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3392180A JPS56130731A (en) 1980-03-19 1980-03-19 No-picture photographing device of camera

Publications (1)

Publication Number Publication Date
JPS56130731A true JPS56130731A (en) 1981-10-13

Family

ID=12399972

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3392180A Pending JPS56130731A (en) 1980-03-19 1980-03-19 No-picture photographing device of camera

Country Status (1)

Country Link
JP (1) JPS56130731A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4878751A (en) * 1985-01-21 1989-11-07 Minolta Camera Kabushiki Kaisha Camera system
US4935766A (en) * 1985-01-21 1990-06-19 Minolta Camera Kabushiki Kaisha Camera system including exposure mode data back and flash accessories
US5220368A (en) * 1985-01-21 1993-06-15 Minolta Camera Kabushiki Kaisha Camera system
US5333030A (en) * 1985-01-21 1994-07-26 Minolta Camera Kabushiki Kaisha Camera system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5126712U (en) * 1974-08-19 1976-02-27

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5126712U (en) * 1974-08-19 1976-02-27

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4878751A (en) * 1985-01-21 1989-11-07 Minolta Camera Kabushiki Kaisha Camera system
US4935766A (en) * 1985-01-21 1990-06-19 Minolta Camera Kabushiki Kaisha Camera system including exposure mode data back and flash accessories
US5220368A (en) * 1985-01-21 1993-06-15 Minolta Camera Kabushiki Kaisha Camera system
US5333030A (en) * 1985-01-21 1994-07-26 Minolta Camera Kabushiki Kaisha Camera system

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