LENS FOR LARGE-SIZED CAMERA UNDER EXPOSURE CONTROL (STOP AND SHUTTER SPEED CONTROL) OF EXPOSURE METER, AND SINGLE-LENS REFLEX CAMERA

摘要

PROBLEM TO BE SOLVED: To enable a photographer to take many photographs just as the photographer intends by enabling a single-lens reflex camera which has a lens for large-sized camera and an automatic exposure function to perform data communication with an exposure meter, and then enabling a large-sized camera to properly measure exposure of a target subject in conformity with momentary luminance variation of the subject and then making settings more accurate than conventional manual settings.;SOLUTION: Disclosed are the lens for large-sized camera and an automatic exposure camera that enable automatic exposure control on the basis of exposure data obtained by the exposure meter, which is provided with a function of communicating with the camera or lens to take a photograph with exposure of the subject optionally selected by the exposure meter.;COPYRIGHT: (C)2005,JPO&NCIPI