JPS5687025A - Programmed exposure control device of lens interchangeable camera - Google Patents
Programmed exposure control device of lens interchangeable cameraInfo
- Publication number
- JPS5687025A JPS5687025A JP16354079A JP16354079A JPS5687025A JP S5687025 A JPS5687025 A JP S5687025A JP 16354079 A JP16354079 A JP 16354079A JP 16354079 A JP16354079 A JP 16354079A JP S5687025 A JPS5687025 A JP S5687025A
- Authority
- JP
- Japan
- Prior art keywords
- aperture
- full
- value
- digital
- lens
- 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 reduce the effect of camera-shake by determining the shutter second time based on luminance which is not corrected by the full-aperture F value of the lens without making actual stopping-down at the time when the aperture gives the full-aperture side according to ranks rather than the full-aperture F value of the lens.
CONSTITUTION: A decoder circuit DCF which has received the signal of giving aperture value by a decoder circuit DEC compares the digital full-aperture F value information from a full-aperture F value digital switch F0D and the signal from the decoder circuit DEC, decides whether the aperture according to ranks is on the open side than the full-aperture F value of the lens or not and when it is on the full- aperture side, said circuit interrupts the inputting of the digital full-aperture F value informatin to a digital operator D0. Along with this, the decoder circuit DEC changes over from the full-aperture photographic mode corresponding to ranks to stopping-down photometric mode and outputs the shutter second time signal corresponding to the digital light value itself to a shutter control circuit SC.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16354079A JPS5687025A (en) | 1979-12-18 | 1979-12-18 | Programmed exposure control device of lens interchangeable camera |
US06/216,664 US4324467A (en) | 1979-12-18 | 1980-12-15 | Programed exposure control device |
GB8040231A GB2067772B (en) | 1979-12-18 | 1980-12-16 | Programmed exposure control devices |
DE19803047799 DE3047799A1 (en) | 1979-12-18 | 1980-12-18 | PROGRAM-CONTROLLED EXPOSURE CONTROL DEVICE FOR PHOTOGRAPHIC CAMERAS |
GB08325928A GB2137367B (en) | 1979-12-18 | 1983-09-28 | Programmed exposure control |
GB08325927A GB2137366B (en) | 1979-12-18 | 1983-09-28 | Programmed exposure control |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16354079A JPS5687025A (en) | 1979-12-18 | 1979-12-18 | Programmed exposure control device of lens interchangeable camera |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5687025A true JPS5687025A (en) | 1981-07-15 |
Family
ID=15775819
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16354079A Pending JPS5687025A (en) | 1979-12-18 | 1979-12-18 | Programmed exposure control device of lens interchangeable camera |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5687025A (en) |
-
1979
- 1979-12-18 JP JP16354079A patent/JPS5687025A/en active Pending
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