Photographic camera having an interchangeable lens
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 22, 1988
Grant Date -
N/A
app pub date -
Oct 30, 1987
filing date -
Nov 5, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A photographic camera having an interchangeable lens and an automatic exposure control and focusing device comprising a computing circuit for the determination of the front and rear depth-of-field planes. The computing circuit is connected to a data memory on the camera side, a control unit, an autofocus central unit and an exposure control device. At a given stored sharpness and open aperture, the front and rear depth-of-field planes are automatically controlled by means of a setting element and can be assessed in the viewfinder. A predetermined depth-of-field range can be set and the required aperture can be displayed in the viewfinder and set, if this aperture is present on the interchangeable lens. The controlled depth-of-field planes remain visible in the viewfinder for a predetermined period of time.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully