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JPS5638025A - Camera - Google Patents

Camera

Info

Publication number
JPS5638025A
JPS5638025A JP9800380A JP9800380A JPS5638025A JP S5638025 A JPS5638025 A JP S5638025A JP 9800380 A JP9800380 A JP 9800380A JP 9800380 A JP9800380 A JP 9800380A JP S5638025 A JPS5638025 A JP S5638025A
Authority
JP
Japan
Prior art keywords
program
aperture
shutter
time
photographing
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
JP9800380A
Other languages
Japanese (ja)
Inventor
Nobuhiko Shinoda
Tadashi Ito
Soichi Nakamoto
Fumio Ito
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 JP9800380A priority Critical patent/JPS5638025A/en
Publication of JPS5638025A publication Critical patent/JPS5638025A/en
Pending legal-status Critical Current

Links

Landscapes

  • Exposure Control For Cameras (AREA)

Abstract

PURPOSE: To obtain a program photographing camera with which aperture priority photographing mode is also possible by calculating the shutter second time based on the program curves which operate the combination of aperture values and shutter second time and the aperture threshold program curves of free setting.
CONSTITUTION: According to the squence control commands read out from an ROM, an arithmetic circuit calculates the exposure information in which the aperture values and shutter second time suited for program photographing are combined based on the photometric values and the constants corresponding to a program curve P1. The thus calculated value is processed in a decision circuit and when it is decided to be more than the maximum and ninimum set aperture threshold values determined by the point of intersection of freely settable program curves PRG1, PRG2 and the curve P1, the shutter second time based on the curve PRG1 or PRG2 is arithmetically operated based on the threshold maximum or minimum aperture value, whereby the shutter second time is controlled. Hence, the photographing by aperture priority mode is accomplished without making the constitution of the program photograping mode camera intricate.
COPYRIGHT: (C)1981,JPO&Japio
JP9800380A 1980-07-16 1980-07-16 Camera Pending JPS5638025A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9800380A JPS5638025A (en) 1980-07-16 1980-07-16 Camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9800380A JPS5638025A (en) 1980-07-16 1980-07-16 Camera

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP48080087A Division JPS5028831A (en) 1973-07-16 1973-07-16

Publications (1)

Publication Number Publication Date
JPS5638025A true JPS5638025A (en) 1981-04-13

Family

ID=14207504

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9800380A Pending JPS5638025A (en) 1980-07-16 1980-07-16 Camera

Country Status (1)

Country Link
JP (1) JPS5638025A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100126880A (en) * 2009-05-25 2010-12-03 삼성전자주식회사 Image photographing apparatus and control method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100126880A (en) * 2009-05-25 2010-12-03 삼성전자주식회사 Image photographing apparatus and control method thereof

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