Single lens reflex camera with automatic diaphragm control mechanism

摘要

A single lens reflex camera is provided with a reflex mirror actuating mechanism and automatic diaphragm control mechanism, with each mechanism being delayed to operate at a proper speed. The diaphragm control mechanism arrests operation of a diaphragm driving means during stopping down of the diaphragm by means of an electromagnet actuated in response to the output of a diaphragm control circuit which compares set exposure factors with the brightness of an object to be photographed, while measuring the brightness through the diaphragm aperture that is being driven.