| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical system having an anti-shake group, which is reduced in total size and weight and offers superior imaging performance from infinity to a close distance even when anti-shake is enabled.SOLUTION: An optical system includes a first movable group G1 and a second movable group G2, in order from the object side, which are configured to move different distances along an optical axis when shifting focus from an object at infinity to an object at a short distance, where a movable group comprising the first movable group G1 and the second movable group G2 has an anti-shake group Gvc located therein, and satisfies a conditional expression (1).SELECTED DRAWING: Figure 1 |
