发明名称 Camera and camera system
摘要 A camera for use with a flash device capable of performing a test light emitting action and a lens device having a diaphragm includes a lens diaphragm control instructing part for giving an instruction for an aperture controlling action of the diaphragm of the lens device, and a test light emission control part for causing, in response to a predetermined operation (for example, an operation on a stop-down switch provided on the camera), both the aperture controlling action by the lens diaphragm control instructing part and the test light emitting action of the flash device to be performed, so that, in response to the predetermined operation, the test light emission can be performed in a state of having the aperture of the lens diaphragm stopped down. Accordingly, shades and shadows of the object of shooting to be obtained under flash light emission can be simply recognized through the test light emission prior to execution of flash photography without recourse to any complex operation.
申请公布号 US6178296(B1) 申请公布日期 2001.01.23
申请号 US19980166044 申请日期 1998.10.05
申请人 CANON KABUSHIKI KAISHA 发明人 KOJIMA TERUYUKI
分类号 G03B15/03;G03B7/16;G03B15/05;G03B43/00;(IPC1-7):G03B15/03;G03B9/02 主分类号 G03B15/03
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