JPS5697331A - Aperture value displaying and warning device at strobe photographing - Google Patents
Aperture value displaying and warning device at strobe photographingInfo
- Publication number
- JPS5697331A JPS5697331A JP17359279A JP17359279A JPS5697331A JP S5697331 A JPS5697331 A JP S5697331A JP 17359279 A JP17359279 A JP 17359279A JP 17359279 A JP17359279 A JP 17359279A JP S5697331 A JPS5697331 A JP S5697331A
- Authority
- JP
- Japan
- Prior art keywords
- aperture value
- signal
- strobe
- arithmetic circuit
- aperture
- 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
- Indication In Cameras, And Counting Of Exposures (AREA)
- Exposure Control For Cameras (AREA)
- Stroboscope Apparatuses (AREA)
Abstract
PURPOSE: To easily perform aperture setting at the strobe photographing by inputting a film sensitivity signal from camera body side and determining a guide number by this and the quantity of emitted light that the strobe device possesses.
CONSTITUTION: A signal generator 4 according to the quantity of light emitted by a strobe device S, an automatic distance measuring device 5 and a conversion circuit 6 are provided to the constitution B on strobe device S side. A correct aperture value is calculated by an arithmetic circuit 7 from a film sensitivity signal, the guide number by the quantity of light emitted by the strobe device S', and the distance signal by the automatic distance measuring device 5, and the measured distance signal from the conversion circuit 6 is displayed in a distance display device 8. The correct aperture value from the arithmetic circuit 7 is displayed in an aperture value display device 11. In a comparator 12, the correct aperture value operated by the arithmetic circuit 7 is detected whether it is within the minimum and maximum aperture values of the lens used and the warning signal output terminal 12a for performing warning for the aperture value displaying when it is decided that the result of the comparison by this comparator 12 is not within said value is provided.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17359279A JPS5697331A (en) | 1979-12-29 | 1979-12-29 | Aperture value displaying and warning device at strobe photographing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17359279A JPS5697331A (en) | 1979-12-29 | 1979-12-29 | Aperture value displaying and warning device at strobe photographing |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5697331A true JPS5697331A (en) | 1981-08-06 |
Family
ID=15963442
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17359279A Pending JPS5697331A (en) | 1979-12-29 | 1979-12-29 | Aperture value displaying and warning device at strobe photographing |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5697331A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5876819A (en) * | 1981-10-31 | 1983-05-10 | Nippon Kogaku Kk <Nikon> | Output device for flash information on camera |
JPS5876817A (en) * | 1981-10-31 | 1983-05-10 | Nippon Kogaku Kk <Nikon> | Display device for flash photography |
JPS5876818A (en) * | 1981-10-31 | 1983-05-10 | Nippon Kogaku Kk <Nikon> | Display device for flash photography |
JPH05313231A (en) * | 1991-10-18 | 1993-11-26 | Nikon Corp | Electronic flashing device |
-
1979
- 1979-12-29 JP JP17359279A patent/JPS5697331A/en active Pending
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5876819A (en) * | 1981-10-31 | 1983-05-10 | Nippon Kogaku Kk <Nikon> | Output device for flash information on camera |
JPS5876817A (en) * | 1981-10-31 | 1983-05-10 | Nippon Kogaku Kk <Nikon> | Display device for flash photography |
JPS5876818A (en) * | 1981-10-31 | 1983-05-10 | Nippon Kogaku Kk <Nikon> | Display device for flash photography |
JPH043530B2 (en) * | 1981-10-31 | 1992-01-23 | ||
JPH0415928B2 (en) * | 1981-10-31 | 1992-03-19 | Nippon Kogaku Kk | |
JPH0477295B2 (en) * | 1981-10-31 | 1992-12-08 | Nippon Kogaku Kk | |
JPH05313231A (en) * | 1991-10-18 | 1993-11-26 | Nikon Corp | Electronic flashing device |
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