Outdoor enthusiasts know that durability, size, weight and optical performance are necessities when in the field.Sightron has added 2 models to the popular SII Blue Sky line of binoculars. The additio..
Features an SHR metallic coating put on the reflective surface of Schmidt-Pechan prisms to ensure high transmission. On the prisms, there is also a PXA phase correction and multi-layer coating on all ..
