A simple solution for users who want no-hassle long-range viewing. The 12x magnification brings faraway objects up close. Multi Coated Optics - Multiple layers of coatings on all lens surfaces increase light transmission and image brightness. Nitrogen Purged Fog-Proofing - Nitrogen inside the scope ensures interior optical surfaces won't fog due to humidity or rapid temperature change. PermaFocus Technology - Keeps distant objects permanently in focus eliminating the need for constant adjustment.