| 摘要 |
PROBLEM TO BE SOLVED: To permit operation without changing the position of a hand for supporting a lens-barrel by arranging an operating member for plural kinds of lens operation or camera operation within the range on the side of an object rather than a focusing ring. SOLUTION: Plural operating members for performing plural kinds of lens operation or camera operation except for manual focusing are arranged while changing positions in the direction of optical axis within the range on the side of the object rather than a focusing ring 2. An operator supports the range from the periphery of a switch ring rubber 5 on a front cylinder 4 to the manual focusing ring 2 on a fixed cylinder 1 with one hand H and prepares for photographing by placing the other hand on the release switch of a camera. Since all operating buttons on the manual focusing ring 2, a focus return ring 3 and the switch ring rubber 5 are arranged while being concentrated within the range supported with the hand H, these operating members can be operated by one hand H without changing the hand supporting the lens-barrel. |
