| 摘要 |
<p>When a mirror charge lever (406) is driven to a mirror-up position, the mirror charge lever is engaged with a first cam portion (401a) and driven to the mirror-up position in a region in which a force of a mirror-up spring (405) for urging the mirror charge lever (406) to the mirror-up position is larger than a force of a mirror-down spring (408) for urging the mirror charge lever (406) to the mirror-down position. In a region (B) in which the force of the mirror-down spring (408)for urging the mirror charge lever (406) to the mirror-down position is equal to or larger than the force of the mirror-up spring (405) for urging the mirror charge lever (406) to the mirror-up position, the mirror charge lever (406) is engaged with the second cam portion (401c) and driven to the mirror-up position.</p> |
