| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem that, in a lens capable of performing tilt/shift imaging, it is necessary to detect information on tilt and shift in order to correct deviation caused by the tilt/shift imaging, and a relative angle of the tilt and shift at a center of an optical axis is fixed in the conventional manner, but when a tilt part and a shift part are made to freely relatively rotate, large-scaled constitution is required to acquire a rotational angle in a tilt direction to a camera body because the shift part exists. SOLUTION: A relative rotation part 215 is provided between the shift part 211 and the tilt part, and a detection means configured to detect a relative rotational amount between the shift part and the relative rotation part is provided, whereby the rotational angle at the center of the optical axis in the shift direction and the rotational angle at the center of the optical axis in the tilt direction are calculated, so as to correct the deviation. COPYRIGHT: (C)2010,JPO&INPIT
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