Patent ID: 7218455

Claim:
A zoom lens comprising at least a first lens group, a second lens group, and a third lens group arranged in the order from an object side, in which said first lens group includes a reflection member for bending an optical axis fixedly during zooming and has a negative refractive power, and said second lens group has a negative refractive power, wherein: an image can be shifted in a direction perpendicular to said optical axis by moving either of said second and said third lens groups (hereinafter referred to as a “shift lens group”) in a direction perpendicular to the optical axis, and a following conditional expression (1) is satisfied, 0.5<(1−βα)×β b< 3.0, (1) where: βα: a magnification of said shift lens group in a maximum telephoto state, and βb: a magnification of a lens group arranged on an image surface side of said shift lens group in the maximum telephoto state.