The Leupold Golden Ring 12-40x60mm HD spotting scope takes the performance of the standard model to a new level. HD lens system ?? this fluoride-based objective lens system is eco-friendly and offers substantially enhanced resolution, color, and contrast, especially at 40x for sharper, better defined images of game in cover. Soft-side, form-fitting case ?? in desert tan, it comes with the scope to provide extra protection and can remain on the scope during use. Index Matched Lens System ?? along with folded light path technology, it minimizes light dispersion and gives you maximum light transmission. -Actual Magnification: 12.7x-38.1x -Linear Field of View (ft at 100 yd): 16.8-5.2 -Angular Field of View (degrees): 3.2-1.0 -Weight (oz): 37.0 -Length (in): 12.4 -Objective Aperture (mm): 60 -Exit Pupil (mm): 4.8-1.5 -Eye Relief (mm): 30.0 -Close Focus Distance (ft): 36.0