JPS54108627A - Display device of program shutter - Google Patents
Display device of program shutterInfo
- Publication number
- JPS54108627A JPS54108627A JP1574678A JP1574678A JPS54108627A JP S54108627 A JPS54108627 A JP S54108627A JP 1574678 A JP1574678 A JP 1574678A JP 1574678 A JP1574678 A JP 1574678A JP S54108627 A JPS54108627 A JP S54108627A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- aperture value
- shutter
- comparator
- minimum 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
- Exposure Control For Cameras (AREA)
- Indication In Cameras, And Counting Of Exposures (AREA)
Abstract
PURPOSE: To perform selective displaying of specified values readily and accurately by setting the camera which is program controlled according to the minimum aperture value of exchange lenses at the aperture priority mode when the set minimum aperture value is inadequate.
CONSTITUTION: When the minimum aperture value corresponding to the minimum aperture of exchange lenses is set by cooperating sliders W1, W3, a program shutter speed voltage is supplied from terminal T6 to the terminal 6a of a display circuit 6 and a comparator 4. On the other hand, the photometric voltage of a photometric circuit 1 is applied to the comparator 4 and the measurement voltage through the circuit 1 and a potentiometer PM1 is applied to the comparator 4, device 6, whereby the aperture is automatically controlled and at the same time the correct aperture value is displayed in the device 6. In case the set minimum aperture value is inadequate, a switch SW5 is connected to the contact O5 and the aperture priority mode is set, then the swtiches SW7, SW6 change over and the display of the device 6 is changed over to the shutter second time by the voltage corresponding to a reference shutter second time from the terminal T3 and the program shutter second time voltage from the potentiometer PM3.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1574678A JPS54108627A (en) | 1978-02-13 | 1978-02-13 | Display device of program shutter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1574678A JPS54108627A (en) | 1978-02-13 | 1978-02-13 | Display device of program shutter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54108627A true JPS54108627A (en) | 1979-08-25 |
Family
ID=11897320
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1574678A Pending JPS54108627A (en) | 1978-02-13 | 1978-02-13 | Display device of program shutter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54108627A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05313231A (en) * | 1991-10-18 | 1993-11-26 | Nikon Corp | Electronic flashing device |
-
1978
- 1978-02-13 JP JP1574678A patent/JPS54108627A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05313231A (en) * | 1991-10-18 | 1993-11-26 | Nikon Corp | Electronic flashing device |
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