How We Test Optics
As always, our goal was to evaluate each instrument with the utmost objectivity, which meant setting aside personal preferences and prejudices, particularly regarding brand names and national origins. Sport optics have many uses, but our primary focus remained, as always, on hunting. Quantifiable characteristics, such as length, weight, eye relief, resolution, etc., were measured precisely. Resolution, for example, which is the keystone of optical performance, was measured in seconds of angle using a USAF 1951 Resolving Power Test Target. And, to compensate for the deficiencies of human vision, a 3X auxiliary telescope was used behind the instrument's eyepiece, thereby tripling the magnification.