The swarovski sts 65 hd straight spotting scope is part of the atssts range and offers all the features that you would look for in a spotting scope a lightweight design with cutting edge optics fluoride containing hd lenses minimise colour fringing chromatic aberration and deliver contrast rich images with razor sharp outlines which is ideal for digiscoping the easy to handle fully rubberised nitrogen filled and waterproof construction makes the sts 65 an ideal scope for outdoor viewing