发明名称 TTL DIMMING LEVEL CONTROLLER
摘要 PURPOSE:To make an exposure correct in the case of executing flash photographing by constituting the level controller so that the larger a ratio of a main object occupied on a photographing screen is, the higher the dimming level becomes. CONSTITUTION:When a program is executed by following up a release operation, a CPU 21 decides a vertical position, a horizontal position and an upward state, etc., of a camera by attitude signals from attitude sensors 10a - 10d. In this state, the level correction quantity is set by adding a prescribed quantity in the case of the vertical position, and by decreasing a prescribed quantity in case of the horizontal position and the upward state. Subsequently, based on the set level correction quantity, a level adjusting signal is generated and sent out to a level setting device 41. In such a way, the larger the ratio of a man object to be photographed occupied on a photographing screen is large, the higher the dimming level can be made, and an exposure in case of executing flash photographing becomes correct.
申请公布号 JPH0293437(A) 申请公布日期 1990.04.04
申请号 JP19880247830 申请日期 1988.09.29
申请人 NIKON CORP 发明人 TAKAGI TADAO;SATO TOSHIHIRO
分类号 G03B7/16;G03B7/28;G03B15/05 主分类号 G03B7/16
代理机构 代理人
主权项
地址