A remote operation device includes a first operation acceptance portion having a rotary dial, a second operation acceptance portion provided along an outer periphery of the rotary dial and allowed to rotate separately from the rotary dial, and a control portion. When a relative position of a user's hand with respect to the first operation acceptance portion is at a covered position, the control portion switches the first operation acceptance portion and the second operation acceptance portion to a locked state and accepts an operation on the first operation acceptance portion. When the relative position of the user's hand with respect to the first operation acceptance portion is at an uncovered position, the control portion switches the first operation acceptance portion and the second operation acceptance portion to an unlocked state and accepts an operation on the second acceptance portion.