Patent ID: 8625203

Claim:
A zoom lens, comprising, in order from an object, a first lens group having positive refractive power, a second lens group having negative refractive power, a third lens group having positive refractive power, and a fourth lens group having positive refractive power, a distance between each lens group being changed upon zooming from a wide-angle end state to a telephoto end state, the third lens group having, in order from the object, a positive lens group having positive refractive power and a negative lens group having negative refractive power, and having a configuration to move the negative lens group with components of movement orthogonal to the optical axis, and the following conditional expression being satisfied: 2.6<| X 1|/ fw< 8.0 where X1 denotes a moving distance of the first lens group upon zooming from the wide-angle end state to the telephoto end state, and fw denotes a focal length of the zoom lens in the wide-angle end state.