JPS5638021A - Single-lens reflex camera - Google Patents
Single-lens reflex cameraInfo
- Publication number
- JPS5638021A JPS5638021A JP9799880A JP9799880A JPS5638021A JP S5638021 A JPS5638021 A JP S5638021A JP 9799880 A JP9799880 A JP 9799880A JP 9799880 A JP9799880 A JP 9799880A JP S5638021 A JPS5638021 A JP S5638021A
- Authority
- JP
- Japan
- Prior art keywords
- shutter
- photographing
- aperture
- circuit
- program
- 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
Links
Landscapes
- Exposure Control For Cameras (AREA)
Abstract
PURPOSE: To perform high-accuracy program photographing by operating and storing the combinations of the aperture values and shutter second time suited for program photographing based on photometric values and controlling the exposure at the photographing.
CONSTITUTION: When it is detected that the shutter and aperture selection switches SW6, SW7 of an operation setting circuit 3 are both off, the corresponding sequence program is read out from the ROM5c of a control circuit 5 by the program photographing decision signal of a gate circuit 4. Prior to photographing, the combinations of the aperture values and shutter second time suited for program photographing based on the photometric values from a photometric circuit 1, the constant α from the constant switch of a photographing information setting means 2, etc. are calculated in an arithmetic circuit 8a and are stored in a memory device 10. At the subsequent shutter releasing, the aperture and shutter second time are controlled until the operated exposure value of the circuit 8a by rephotometry assumes a predetermined relation with the storage contents of the device 10, thus the program photographing of the single-lens reflex camera of focal plane shutter is accomplished highly accurately by controlling of the shutter second time and aperture based on the same luminance.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9799880A JPS5638021A (en) | 1980-07-16 | 1980-07-16 | Single-lens reflex camera |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9799880A JPS5638021A (en) | 1980-07-16 | 1980-07-16 | Single-lens reflex 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 |
---|---|
JPS5638021A true JPS5638021A (en) | 1981-04-13 |
Family
ID=14207322
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9799880A Pending JPS5638021A (en) | 1980-07-16 | 1980-07-16 | Single-lens reflex camera |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5638021A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6050568U (en) * | 1983-09-14 | 1985-04-09 | ミノルタ株式会社 | electronic still camera |
WO1991011072A1 (en) * | 1990-01-08 | 1991-07-25 | Nikon Corporation | Still picture pickup device |
-
1980
- 1980-07-16 JP JP9799880A patent/JPS5638021A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6050568U (en) * | 1983-09-14 | 1985-04-09 | ミノルタ株式会社 | electronic still camera |
WO1991011072A1 (en) * | 1990-01-08 | 1991-07-25 | Nikon Corporation | Still picture pickup device |
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