Operation device and imaging apparatus

Abstract

An operation device includes a dial and a dial lock member including a recessed portion. The dial includes: a lock lever member that is movable in an extending direction of a rotational center line of the dial and includes a button portion and a projecting portion, the button portion being configured to be pressed down by a user, the projecting portion being configured to engage with the recessed portion of the dial lock member to bring the dial into a non-rotatable locked state when the button portion is pressed down; and an alternate mechanism configured to moves the lock lever member so as to bring the dial into a rotatable unlocked state in which engagement between the projecting portion and the recessed portion is released after the button portion in the locked state is pressed down by a user.

Dependencies are inferred from the claim text.