Zoom lens for use in copying

摘要

A zoom lens comprising a first and a second lens component that are related to each other for zooming. The first lens component consists of four lens elements and has a positive focal length fI satisfying the condition 0.35<fI/fM<0.85, where fM is the focal length of the system at unit magnification. The second lens component consists of a negative miniscus lens and possibly a positive lens and has a negative focal length fII satisfying the condition, 0.7<-fII/fM<3.0.