Leica engineered the 35mm Digiscoping Objective Lens to address two key drawbacks to their original digiscoping adapter: to improve the transition between observation and taking photos, and to take advantage of the wide zoom magnification range afforded by the eyepiece. Where the old adapter replaced the eyepiece, therefore effectively making the APO-Televid into a fixed-focal length telephoto lens, this new objective lens mounts over the eyepiece so users can quickly remove it to make observations and easily re-install it to capture photos. This mounting also allows users to zoom in on subjects using the eyepiece therefore maintaining the spotter's versatility even while digiscoping.