A zoom lens wherein the image plane movement upon lens shifting is
minimized. A power variation section and a final lens group are disposed
in order from an object side. The power variation section includes at
least two lens groups movable in an optical axis direction to vary a lens
position state. The final lens group is fixed in the optical axis
direction and includes first to third sub groups having negative,
positive and positive refracting powers and disposed in order from the
object side. The second sub group is shiftable substantially
perpendicularly to the optical axis to shift an image. A conditional
expression 0.2