JPS55103532A - Operating device of camera - Google Patents

Operating device of camera

Info

Publication number
JPS55103532A
JPS55103532A JP1019779A JP1019779A JPS55103532A JP S55103532 A JPS55103532 A JP S55103532A JP 1019779 A JP1019779 A JP 1019779A JP 1019779 A JP1019779 A JP 1019779A JP S55103532 A JPS55103532 A JP S55103532A
Authority
JP
Japan
Prior art keywords
aperture
photographing lens
preset
variable resistances
correcting member
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
JP1019779A
Other languages
Japanese (ja)
Inventor
Masaharu Kawamura
Masanori Uchitoi
Yoshihiro Shigeta
Hirotsugu Sugiura
Hiroshi Yamamoto
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 JP1019779A priority Critical patent/JPS55103532A/en
Priority to US06/116,314 priority patent/US4297013A/en
Priority to DE3003275A priority patent/DE3003275C2/en
Publication of JPS55103532A publication Critical patent/JPS55103532A/en
Pending legal-status Critical Current

Links

Landscapes

  • Exposure Control For Cameras (AREA)

Abstract

PURPOSE: To simplify circuit and obtain highly accurate preset aperture information by providing the aperture preset ring of photographing lens and the two variable resistances interlocking to an open aperture correcting member on the same substrate.
CONSTITUTION: The variable resistance which is adjusted according to the setting of the aperture preset ring of photographing lens and the variable resistance which is adjusted according to the open aperture correcting member of the photographing lens are disposed on the same substrate to reduce the relative errors of the both variable resistances. The substrate is disposed in the narrow spacing near the mirror and the two variable resistances are respectively interlocked to the aperture preset ring and open aperture correcting member of the photographing lens. Further the tow variable resistances are series-connected between the input and output ends of an operational amplifier so that the highly accurate preset aperture information is outputted from the operational amplifier.
COPYRIGHT: (C)1980,JPO&Japio
JP1019779A 1979-01-31 1979-01-31 Operating device of camera Pending JPS55103532A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP1019779A JPS55103532A (en) 1979-01-31 1979-01-31 Operating device of camera
US06/116,314 US4297013A (en) 1979-01-31 1980-01-28 Coordinating control system for camera
DE3003275A DE3003275C2 (en) 1979-01-31 1980-01-30 Exposure control circuit for automatic or B exposure on a camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1019779A JPS55103532A (en) 1979-01-31 1979-01-31 Operating device of camera

Publications (1)

Publication Number Publication Date
JPS55103532A true JPS55103532A (en) 1980-08-07

Family

ID=11743552

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1019779A Pending JPS55103532A (en) 1979-01-31 1979-01-31 Operating device of camera

Country Status (1)

Country Link
JP (1) JPS55103532A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58132219A (en) * 1982-02-01 1983-08-06 Nippon Kogaku Kk <Nikon> Discriminating device for set aperture value of interchangeable lens

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58132219A (en) * 1982-02-01 1983-08-06 Nippon Kogaku Kk <Nikon> Discriminating device for set aperture value of interchangeable lens

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