JPS55134821A - Automatic exposure control camera - Google Patents

Automatic exposure control camera

Info

Publication number
JPS55134821A
JPS55134821A JP4130179A JP4130179A JPS55134821A JP S55134821 A JPS55134821 A JP S55134821A JP 4130179 A JP4130179 A JP 4130179A JP 4130179 A JP4130179 A JP 4130179A JP S55134821 A JPS55134821 A JP S55134821A
Authority
JP
Japan
Prior art keywords
shutter
lens
time
determined
iris
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
JP4130179A
Other languages
Japanese (ja)
Inventor
Katsumi Terada
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.)
Olympus Corp
Original Assignee
Olympus Optical Co Ltd
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 Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP4130179A priority Critical patent/JPS55134821A/en
Publication of JPS55134821A publication Critical patent/JPS55134821A/en
Pending legal-status Critical Current

Links

Landscapes

  • Exposure Control For Cameras (AREA)

Abstract

PURPOSE: To automatically determine the combination program of shutter second time and iris according to the focal lengths of lenses by providing such a mechanism that the control part is controlled by the engagement of the 1st member provided to the end face of the lens and the 2nd member provided to the mount part of the camera.
CONSTITUTION: When the pin 16 of the lens end face is engaged with the notched part of a ring 4, the ring 4 rotates to connect the 1st contact and 2nd contact of a switching plate 10, by which one of resistances R1WR3 is connected. Since the position of the pin 16 changes according to the focal length of the lens, the connection state of the resistances R1WR3 also changes. The photo detection of photo detectors P1, P2 causes the front curtain to run and the iris to be determined by an aperture decision circuit 22, aperture mechanism drive circuit 24 and front curtain running control circuit 26. The photo detection of photo detectors P3, P4 causes the rear curtain to run and the shutter second time to be determined by a shutter second time decision circuit 28 and rear curtain running control circuit 30. Thereby, the combination program of the shutter second time and iris according to the focal length of the lens is automatically determined.
COPYRIGHT: (C)1980,JPO&Japio
JP4130179A 1979-04-05 1979-04-05 Automatic exposure control camera Pending JPS55134821A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4130179A JPS55134821A (en) 1979-04-05 1979-04-05 Automatic exposure control camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4130179A JPS55134821A (en) 1979-04-05 1979-04-05 Automatic exposure control camera

Publications (1)

Publication Number Publication Date
JPS55134821A true JPS55134821A (en) 1980-10-21

Family

ID=12604640

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4130179A Pending JPS55134821A (en) 1979-04-05 1979-04-05 Automatic exposure control camera

Country Status (1)

Country Link
JP (1) JPS55134821A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62163032A (en) * 1986-01-10 1987-07-18 Minolta Camera Co Ltd Camera capable of trimming photographing
JPH01136925U (en) * 1988-11-30 1989-09-19

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54156533A (en) * 1978-05-31 1979-12-10 Nippon Chemical Ind Camera having variable programmed exposure controller

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54156533A (en) * 1978-05-31 1979-12-10 Nippon Chemical Ind Camera having variable programmed exposure controller

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62163032A (en) * 1986-01-10 1987-07-18 Minolta Camera Co Ltd Camera capable of trimming photographing
JPH01136925U (en) * 1988-11-30 1989-09-19

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