| 摘要 |
At least one lens element of an imaging lens is arranged on a rear side of a half mirror 10 . Also, at least one of the lens element on the rear side or all constituent elements including an imaging element 33 on the rear side of the half mirror 10 are arranged in a decentering state with respect to an optical axis Z 1 of lens elements on a front side of the half mirror 10 . Even if offset of the optical axis is caused by arrangement of the half mirror 10 , such offset can be corrected on the camera-main-body side. Thereby, good imaging performances can be achieved even if the half mirror 10 is used as a light splitting means.
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