JPS5758132A - Photometric device of single-lens reflex camera - Google Patents

Photometric device of single-lens reflex camera

Info

Publication number
JPS5758132A
JPS5758132A JP55134104A JP13410480A JPS5758132A JP S5758132 A JPS5758132 A JP S5758132A JP 55134104 A JP55134104 A JP 55134104A JP 13410480 A JP13410480 A JP 13410480A JP S5758132 A JPS5758132 A JP S5758132A
Authority
JP
Japan
Prior art keywords
photometric
mirror
center
light
photometric system
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
JP55134104A
Other languages
Japanese (ja)
Inventor
Kikuo Momiyama
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 JP55134104A priority Critical patent/JPS5758132A/en
Publication of JPS5758132A publication Critical patent/JPS5758132A/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 switch photometric ranges by providing a photodetecting element part, used in common for the 1st and 2nd photometric systems, at a position off a photographic optical path between the descent position of a rotary mirror and a film surface and by making the sensitivity distribution of the 1st photometric system wider than that of the 2nd one. CONSTITUTION:With a rotary mirror 1 up, reflected light from a film surface 5 being exposed or a shutter leading curtain 6 is made incident to a photodetecting element 8 to perform photometry by the 1st photometric system. With the rotary mirror 1 down, the 2nd photometric element 8 through an auxiliary mirror 7 by passing the light through a half-mirror in the center in the center of the mirror. In this case, the sensitivity distribution of the 1st photometric system is made wider in photometric range than that of the 2nd one, so center-priority averaged light measuring by film-surface reflected light and partial or spot light measuring by the 2nd photometric system are performed selectively.
JP55134104A 1980-09-25 1980-09-25 Photometric device of single-lens reflex camera Pending JPS5758132A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55134104A JPS5758132A (en) 1980-09-25 1980-09-25 Photometric device of single-lens reflex camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55134104A JPS5758132A (en) 1980-09-25 1980-09-25 Photometric device of single-lens reflex camera

Publications (1)

Publication Number Publication Date
JPS5758132A true JPS5758132A (en) 1982-04-07

Family

ID=15120538

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55134104A Pending JPS5758132A (en) 1980-09-25 1980-09-25 Photometric device of single-lens reflex camera

Country Status (1)

Country Link
JP (1) JPS5758132A (en)

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