Camera system with means for varying exposure control data
US5111234A · kind A · utility
27Cited by
13References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 11, 1990 |
| Grant date | May 5, 1992 |
| Priority date | — |
| Expiry date | Apr 11, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2217/18
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In a camera adapted to function with stored data, aperture value data is stored at a predetermined step in accordance with a manual operation of a manually operable member and digital data, showing a controllable range of an aperture diaphragm of an interchangeable lens, is transmitted from the interchangeable lens and read. The stored aperture value data is detected to determine whether such data is out of the controllable range and the aperture value data to be stored is set to a limited value within the controllable range when the detection of the stored aperture value data is out of the controllable range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.