发明名称 Photographic control system for varying both flash fire aperture and exposure termination in correspondence with film speed
摘要 In a photographic exposure control system of the type which provides a flash fire signal at an appropriate follow focus aperture value corresponding to the camera-to-subject distance range and which terminates the exposure interval as a function of scene light detection and integration to a select level, there is provided an arrangement by which the exposure control system may be selectively adjusted to accommodate any one of a variety of different film speeds.
申请公布号 US4355873(A) 申请公布日期 1982.10.26
申请号 US19810271579 申请日期 1981.06.08
申请人 POLAROID CORPORATION 发明人 CARCIA, PETER P.
分类号 G03B7/16;(IPC1-7):G03B7/09 主分类号 G03B7/16
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