Combines 10x magnification with 50mm objective lenses for maximum brightness.Features:ED prime glass - Bushnell's highest quality glass delivers amazing color, resolution and contrast, even in low-light conditionsExclusive EXO barrier protection - Bushnell's newest and best protective lens coating molecularly bonds to the glass, repelling water, oil, dust, debris and preventing scratchesDielectric prism coating - applied to the prisms, it ensures vivid color reproduction and allows 92% light transmission for bright imagesPC-3 phase coating - applied to the prisms, it enhances resolution and contrastExobarrier protective lens coatingIPX7 waterproofExtra low dispersion glassLead free glass, locking diopterAdapts to tripodPhase correction coating, ultrawide band coatingTwist up eyecups