Zoom lens and imaging apparatus

A zoom lens consisting of, in order from an object side to an image side:

• a first lens group that has a positive refractive power;
• a second lens group that has a positive refractive power;
• and a subsequent group,
• wherein during zooming, a spacing between the first lens group and the second lens group changes, and a spacing between the second lens group and the subsequent group changes,
• the subsequent group includes a focusing group that moves during focusing,
• a curvature radius of a lens surface closest to the image side in the second lens group is R2r,
• a curvature radius of a lens surface closest to the object side in the subsequent group is RSf,
• Conditional Expression (7) is satisfied, which is represented by
• −0.3<(R2r−RSf)/(R2r+RSf)<1.2 (7),
• the subsequent group includes at least one lens group having a negative refractive power,
• among lens groups having negative refractive powers in the subsequent group, a Sn lens group, which is a lens group that has a strongest refractive power, moves during zooming, and
• a focal length of the Sn lens group is fSn,
• a difference in an optical axis direction between a position of the Sn lens group in a state in which an infinite distance object is in focus at a wide angle end and a position of the Sn lens group in a state in which the infinite distance object is in focus at a telephoto end is DZSn,
• Conditional Expression (8-3) is satisfied, which is represented by
• −15<DZSn/fSn<−2.5 (8-3),
• the subsequent group consists of three or four lens groups, and
• during zooming, spacings between all adjacent lens groups within the subsequent group change.