| 摘要 |
A half-mirror is interposed between a photographing lens and a photographing CCD, and a focusing CCD is movably inserted in the light splitting path of the half-mirror. In photographing, particularly in photographing of a motion image, the focusing CCD is moved to search for an in-focus position. A position to which the photographing lens is to be moved is decided from the positions of the focusing CCD and photographing lens after search. The photographing lens is directly moved to the decided position. The lens need not be moved for searching for an in-focus position during photographing, and in-focus image data can be recorded.
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