JPS55134821A - Automatic exposure control camera - Google Patents
Automatic exposure control cameraInfo
- Publication number
- JPS55134821A JPS55134821A JP4130179A JP4130179A JPS55134821A JP S55134821 A JPS55134821 A JP S55134821A JP 4130179 A JP4130179 A JP 4130179A JP 4130179 A JP4130179 A JP 4130179A JP S55134821 A JPS55134821 A JP S55134821A
- Authority
- JP
- Japan
- Prior art keywords
- shutter
- lens
- time
- determined
- iris
- 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 automatically determine the combination program of shutter second time and iris according to the focal lengths of lenses by providing such a mechanism that the control part is controlled by the engagement of the 1st member provided to the end face of the lens and the 2nd member provided to the mount part of the camera.
CONSTITUTION: When the pin 16 of the lens end face is engaged with the notched part of a ring 4, the ring 4 rotates to connect the 1st contact and 2nd contact of a switching plate 10, by which one of resistances R1WR3 is connected. Since the position of the pin 16 changes according to the focal length of the lens, the connection state of the resistances R1WR3 also changes. The photo detection of photo detectors P1, P2 causes the front curtain to run and the iris to be determined by an aperture decision circuit 22, aperture mechanism drive circuit 24 and front curtain running control circuit 26. The photo detection of photo detectors P3, P4 causes the rear curtain to run and the shutter second time to be determined by a shutter second time decision circuit 28 and rear curtain running control circuit 30. Thereby, the combination program of the shutter second time and iris according to the focal length of the lens is automatically determined.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4130179A JPS55134821A (en) | 1979-04-05 | 1979-04-05 | Automatic exposure control camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4130179A JPS55134821A (en) | 1979-04-05 | 1979-04-05 | Automatic exposure control camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55134821A true JPS55134821A (en) | 1980-10-21 |
Family
ID=12604640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4130179A Pending JPS55134821A (en) | 1979-04-05 | 1979-04-05 | Automatic exposure control camera |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55134821A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62163032A (en) * | 1986-01-10 | 1987-07-18 | Minolta Camera Co Ltd | Camera capable of trimming photographing |
| JPH01136925U (en) * | 1988-11-30 | 1989-09-19 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54156533A (en) * | 1978-05-31 | 1979-12-10 | Nippon Chemical Ind | Camera having variable programmed exposure controller |
-
1979
- 1979-04-05 JP JP4130179A patent/JPS55134821A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54156533A (en) * | 1978-05-31 | 1979-12-10 | Nippon Chemical Ind | Camera having variable programmed exposure controller |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62163032A (en) * | 1986-01-10 | 1987-07-18 | Minolta Camera Co Ltd | Camera capable of trimming photographing |
| JPH01136925U (en) * | 1988-11-30 | 1989-09-19 |
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