Patent ID: 8804243

Claim:
A zoom lens that has a plurality of lens groups and performs zooming by changing spaces between the plurality of lens groups, wherein a final lens group positioned to be closest to an image side includes, in order from an object side to an image side, a first partial lens group that has a negative refractive power, a second partial lens group that has a positive refractive power, and a third partial lens group that has a positive refractive power, wherein image blur is corrected by shifting the second partial lens group in a direction substantially perpendicular to an optical axis, and wherein a focal length of the first partial lens group is fGF, a focal length of the second partial lens group is fGS, and a focal length of a whole lens system of the plurality of lens groups in a telephoto end state is ft, the following Conditional Expressions (1) and (2) are satisfied; −0.24 <fGF/ft<− 0.09 (1) 0.12 <fGS/ft< 0.32, (2) wherein a focal length of the third partial lens group is fGR, and a focal length of the final lens group is fGL, the following Conditional Expression (3) is satisfied; 1.0 <fGR/fGL< 3.5. (3)