| 摘要 |
The invention provides a camera including a hold barrel member which holds an image-taking optical unit; a barrier member, disposed on a subject side of the hold barrel member, which opens or closes a substantially rectangular opening; and a barrier driving member, disposed between the barrier member and the hold barrel member, which drives the barrier member in such a way as to rotate on an optical axis of the image-taking optical unit. In a state in which the barrier member opens the opening, the hold barrel member forms a long side part of the opening, and the barrier driving member forms a short side part of the opening.
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