Patent ID: 7738023

Claim:
A camera comprising: a frame period setting unit which sets a period of one frame, in which a pixel signal is read from an image-capturing element, to be a first period or a second period that is longer than the first period; a timing signal output unit which outputs a timing signal of a specific frequency to the image-capturing element, without being affected by a setting state of the frame period by the frame period setting unit; a discrimination unit which discriminates whether the timing signal, which is output from the timing signal output unit, is output during a time period necessary for reading the pixel signal for one frame; and a stopping unit which stops output of the timing signal to the image-capturing element in accordance with a discrimination result of the discrimination unit, wherein the timing signal is used to maintain a clamp level for a clamp process to a proper level in addition to driving the image-capturing element, and wherein, in a case in which the frame period setting unit sets the frame period to be the second period, the stopping unit causes the timing signal to be output from the timing signal output unit to execute a dummy transfer in a predetermined time period immediately before an end of the second period, to restore the clamp level, which has deviated from the proper level due to the stopping of the output of the timing signal.