Wide angle zoom lens

A zoom lens which comprises, in succession from the object side, a divergent lens group (A) and a convergent lens group (B) and whose magnification is changed by relative movement of the two groups and wherein the divergent lens group (A) comprises four lenses, i.e., in succession from the object side, three continuous negative meniscus lenses (L.sub.1, L.sub.2, L.sub.3) having their respective convex surfaces facing the object side and a positive lens (L.sub.4) having its surface of sharper curvature facing the object side and the convergent lens group (B) comprises, in succession from the object side, a single biconvex positive lens (L.sub.5), a meniscus lens (L.sub.6) comprising a doublet and having its convex surface facing the object side, a positive lens (L.sub.7), a negative lens (L.sub.8) and two continuous positive lenses (L.sub.9, L.sub.10), the zoom lens satisfying the following conditions:

• (I) r.sub.1 >3.4f.sub.W
• (II) 0.9.vertline.f.sub.A .vertline.<.vertline.f.sub.11 .vertline.<1.3.vertline.f.sub.A .vertline. (f.sub.11 <0,f.sub.A <0)
• (III) 0.9f.sub.W >d.sub.11 +d.sub.12 +d.sub.14 +d.sub.15 >0.6f.sub.W
• (IV) 1.6f.sub.W >.vertline.r.sub.12 .vertline.>0.8f.sub.W (r.sub.12 <0)
• where f.sub.A represents the focal length of the divergent lens group (A), f.sub.11 represents the focal length of the negative meniscus lens (L.sub.1) which is most adjacent to the object side, r represents the curvature radii of the lens surfaces, d represents the thicknesses of the lenses and the air spaces between the lenses, the subscripts represent the order from the object side, and f.sub.W represents the focal length of the entire system at the wide angle end.