The model DCR-2020PRO high definition telephoto lens is made of high index optical glass elements, and its designed with new designing concept of two-

The model DCR-2020PRO high definition telephoto lens is made of high index optical glass elements, and its designed with new designing concept of two-group/four-element formula to obtain the maximum resolution power of 260 lines/mm resolution power at center (MTF30%), while it has low dispersion.