PURPOSE: To provide wide angle zoom lens having the simple composition, excellent mass productivity, high performance in which aberrations including chromatic aberration are well compensated and the zooming ratio of about three.

CONSTITUTION: Looking from the object side, this lens is composed of a first lens group 1 of negative refractive power composed of two concave lenses L1, L2 and a connvex lens L3, a second lens group 2 of positive refractive power composed of joined lens of a covex lens L4, a convex lens L5 and a concave lens L6, zooming is performed by changing the air gap between the first lens group 1 and the second lens group 2, the first lens group 1 together with the second lens group 2 have in one face or more asphrical shapes, at least one of two conave lenses of the first lens group has the large central thickness and the respective lens groups are composed of lens types, surface shapes and glass materials preferable for the performance of aberration.