| 摘要 |
PROBLEM TO BE SOLVED: To provide a variable power optical system which has small aberration fluctuations when varying power and has optical performance capable of coping with aberration fluctuations occurring when correcting camera shake, an optical device including the variable power optical system, and a method for manufacturing the variable power optical system.SOLUTION: A variable power optical system ZL to be mounted on a camera 1 or the like, includes, in order from the object side: a first lens group G1 having a negative refractive power; a second lens group G2 having a positive refractive power; a third lens group G3 having a negative refractive power; and a fourth lens group G4 having a positive refractive power. When varying power from a wide angle end state to a telephoto end state, the distance between the first lens group G1 and the second lens group G2 is changed, the distance between the second lens group G2 and the third lens group G3 is changed, and the distance between the third lens group G3 and the fourth lens group G4 is changed. At least one single lens in the second lens group G2 serves as an anti-vibration lens group VL which is moved so as to include a component of a direction perpendicular to the optical axis. The first lens group G1 has a negative lens at the position closest to the object side. |
