| 摘要 |
Providing a compact macro lens having high optical performance over the entire focusing range from infinity to a close distance, an optical apparatus equipped therewith, a method for focusing the macro lens, and a method for vibration reduction of the macro lens. The macro lens includes, in order from an object, a first lens group G1, a second lens group G2, and a third lens group G3. Combined refractive power of the first lens group G1 and the second lens group G2 is positive. The first lens group G1 and the second lens group G2 are movable to an object side for varying focusing from the object locating at infinity to the object locating at a close distance. Each lens group includes at least one positive lens and at least one negative lens. Given conditional expressions are satisfied.
|
