JPS57114126A - Camera - Google Patents

Camera

Info

Publication number
JPS57114126A
JPS57114126A JP56001338A JP133881A JPS57114126A JP S57114126 A JPS57114126 A JP S57114126A JP 56001338 A JP56001338 A JP 56001338A JP 133881 A JP133881 A JP 133881A JP S57114126 A JPS57114126 A JP S57114126A
Authority
JP
Japan
Prior art keywords
groove
ring
photometric
lens
depth
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
JP56001338A
Other languages
Japanese (ja)
Inventor
Kazuo Ishikawa
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP56001338A priority Critical patent/JPS57114126A/en
Publication of JPS57114126A publication Critical patent/JPS57114126A/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
    • G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
    • G03B7/08—Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device
    • G03B7/099—Arrangement of photoelectric elements in or on the camera

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Control For Cameras (AREA)

Abstract

PURPOSE:To eliminate the manual switching of the photometric distribution for a TTL photometric camera, by reducing the photometric sensitivity at the upper side within a photographing viewfield interlocked to the operation to decrease the focal distance. CONSTITUTION:A fixed lens barrel 17 which holds an eccentric lens is turned along a groove 171 of the barrel 17 by a zoom lever 19 and a cam ring 18. A known zooming cam groove is provided to the ring 18. A variator lens 2 and a compensator lens 3 are displaced by the ring 18 to vary the focal distance. At the same time, a cam groove 181 is provided to the ring 18, and the depth of the groove 181 varies gradually according to the rotation of the ring 18. The tip part 161 of a switching member 16 of photometric distribution is fitted into the groove 181. The member 16 is moved up and down as shown in the diagram by a slit 163 provided at a part of the member 16 and a pin 26 of the camera main body and in accordance with the depth of the groove of the member 16.
JP56001338A 1981-01-07 1981-01-07 Camera Pending JPS57114126A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56001338A JPS57114126A (en) 1981-01-07 1981-01-07 Camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56001338A JPS57114126A (en) 1981-01-07 1981-01-07 Camera

Publications (1)

Publication Number Publication Date
JPS57114126A true JPS57114126A (en) 1982-07-15

Family

ID=11498705

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56001338A Pending JPS57114126A (en) 1981-01-07 1981-01-07 Camera

Country Status (1)

Country Link
JP (1) JPS57114126A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4635125A (en) * 1984-04-18 1987-01-06 Olympus Optical Co., Ltd. Real-time light-measuring system for single-lens reflex cameras
US4825235A (en) * 1986-05-09 1989-04-25 Nikon Corporation Camera having soft focus filter
JPH04105434U (en) * 1991-02-25 1992-09-10 松下電工株式会社 operation switch

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4635125A (en) * 1984-04-18 1987-01-06 Olympus Optical Co., Ltd. Real-time light-measuring system for single-lens reflex cameras
US4825235A (en) * 1986-05-09 1989-04-25 Nikon Corporation Camera having soft focus filter
JPH04105434U (en) * 1991-02-25 1992-09-10 松下電工株式会社 operation switch

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