A rear-focus zoom lens device includes a wide-angle direction rotation restricting
unit and a telephoto direction rotation restricting unit for separately restricting
rotations of a zoom ring in a wide-angle direction and a telephoto direction and
for separately canceling the restricting operations at any rotational positions
of the zoom ring in the wide-angle direction and the telephoto direction, respectively,
when rotating the zoom ring in the wide-angle direction and the telephoto direction, respectively.