We build optics to withstand the elements, no matter the conditions. We figured that if you spend any time outdoors, you might be near a body of water, and your equipment might spend some time wi..
The Alpen Rainier 10x42mm EDHD Binocular features a Schmidt-Pechan roof prism made of BaK-4 glass which has a reflective surface covered by 60 metallic SHR coatings--the purpose of which is to minimiz..
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 ..
