A zoom lens has first to fifth lens groups G1 to G5 having positive,
negative, positive, positive, and negative refractive power, in order
from an object side. The first lens groups G1 includes a prism L2 for
bending a light path. Zooming is performed by adjusting a focal length by
linear movement of the second lens group G2 and fourth lens group G4 and
compensating an image surface position by nonlinear movement of the fifth
lens group G5. Focusing is performed by moving the fifth lens group G5.