Title:
CAMERA OPERATION CONTROLLER
Document Type and Number:
Japanese Patent JPH01191815
Kind Code:
A
Abstract:
PURPOSE:To improve the convenience to use by calculating an exposure value, based on a full-aperture diaphragm value and luminance information which a photographic lens which can execute photographing at plural focal distances takes at the time of next photographing, and driving the photographic lens until it goes to the focal distance after this calculation. CONSTITUTION:To a CPU 1, a light emitting circuit 5 of an electronic flash device, a motor driving circuit 6, an exposure control circuit 7 and a zoom encoder 10 are connected, respectively. The motor driving circuit 6 controls a motor 8 and drives a zoom lens 9 to a prescribed focal distance, and a position of the zoom lens 9 is detected by the zoom encoder 10. Before driving the zoom lens 9 to the prescribed focal distance (f), an exposure calculation is executed, and based on its result, when it is decided that a flash light emission is necessary, and also, its charging is not completed yet, its warning is generated. When the charging is completed before the zoom lens 9 is driven to the prescribed focal distance (f), photographing accompanied with a flash light emission can be executed immediately at the time point of driving the zoom lens 9 is ended. On the other hand, when the charging is not completed yet, its fact is informed by a warning.
Inventors:
KAZAMI KAZUYUKI
NAKAMURA TOSHIYUKI
DAITOKU KOICHI
MIYAMOTO HIDENORI
NAKAMURA TOSHIYUKI
DAITOKU KOICHI
MIYAMOTO HIDENORI
Application Number:
JP1845988A
Publication Date:
August 01, 1989
Filing Date:
January 27, 1988
Export Citation:
Assignee:
NIKON CORP
International Classes:
G03B7/097; G02B7/08; G02B7/28; G03B7/20; G03B13/36; G03B15/05; G03B17/00; (IPC1-7): G02B7/08; G02B7/11; G03B7/097; G03B7/20; G03B17/00
Attorney, Agent or Firm:
Fuyuki Nagai