发明名称 CAMERA SYSTEM
摘要 PURPOSE:To instruct the kind of a film optimum for using under a scheduled photographing environment in accordance with a relationship with at least the maximum FNo. of a zoom lens before a film is loaded. CONSTITUTION:When a recommendable film decision starting switch 3 is depressed before the film is loaded in a camera, a film recommendation system controlling means 4 is operated, and the brightness of an object is measured by a photometry means 2, and also, a recommendable film deciding means 6 is operated. A film sensitivity capable of excluding a shutter second and a diaphragm value causing a blurring phenomenon and a defocusing phenomenon by the recommendable film deciding means 6 based on information on the brightness of the object and the maximum FNo. of the zoom lens, etc., and then, the film sensitivity is displayed by a display means 7. Thus, a user can photograph without generating the blurring and defocusing phenomena by loading the film having the film sensitivity based on the display and operating a shutter releasing member.
申请公布号 JPH05134288(A) 申请公布日期 1993.05.28
申请号 JP19910323693 申请日期 1991.11.11
申请人 RICOH CO LTD 发明人 HIMURO KEIJI
分类号 G01J1/44;G03B7/08;G03B7/091;G03B17/18 主分类号 G01J1/44
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