| 摘要 |
PROBLEM TO BE SOLVED: To prevent the driving position of an optical filter from being deviated from a delicate setting which a user desires while securing the improvement of operability by automatically adjusting it. SOLUTION: In an optical device incorporating the optical filters 1 and 10 whose filter effect is changed by a driving position in an optical system, a manual driving mode in which driving for an arbitrary driving position corresponding to the user operation of the optical filter is allowed and an automatic driving mode in which automatic driving for the driving position corresponding to the specified condition of the optical filter is executed are selectively set. |
