Patent ID: 7289273

Claim:
A zoom lens comprising, in order from an object side: a first lens unit consisting of one negative lens component; and a second lens unit including one negative lens component and having positive refracting power as a whole, where one lens component denotes a single lens, a cemented lens having a cementing surface or a compound lens having an adhering-and-curing surface to which resin is adhered and cured. wherein the zoom lens satisfies the following condition: 0.15 <t 1 /fw <0.6 where t 1 is a thickness, measured along an optical axis, of the first lens unit, and fw is a focal length of an entire system at a wide-angle position of the zoom lens, wherein the negative lens component of the first lens unit includes a plurality of lens elements and is constructed as a cemented lens having a cementing surface or a compound lens having an adhering-and-curing surface, and wherein the cementing surface or the adhering-and-curing surface of the first lens unit is made aspherical.