| 摘要 |
PURPOSE:To minimize a defect that exposure cannot be corrected sufficiently and to simplify a constitution, arithmetic processing, etc., by outputting a value obtained by subtracting a correction value corresponding to a photographing magnification from the brightness value of a 1st sensor as brightness information. CONSTITUTION:When a brightness value obtained from the output of the 1st sensor 1a in a backlighted state is higher than a 2nd prescribed brightness from a 2nd brightness information determining means 4b, and when the photographing magnification is within a certain range, a 3rd brightness information determining means 4c operates and outputs the value obtained by subtracting the correction value corresponding to the photographing magnification Mv from the brightness from the 1st sensor 1a as brightness information for controlling exposure. Consequently, when brightness in a central area is raised by background brightness, a main object never becomes less than a prescribed brightness. Thus, correct brightness information, simple arithmetic processing, etc., can be achieved by the simple constitution. |
