A camera includes: an image-capturing element that captures a subject
image through a photographic lens; an evaluation value calculation unit
that calculates a focus evaluation value based upon an image-capturing
signal output from the image-capturing element; a focusing operation unit
that performs a focusing operation at the photographic lens based upon
the focus evaluation value; a decision-making unit that makes a decision
as to whether or not a predetermined length of time has elapsed following
an end of the focusing operation; a restart unit that engages the
focusing operation unit in a focusing operation if the decision-making
unit decides that the predetermined length of time has elapsed; and a
time adjustment unit that changes the predetermined length of time.