For the Birder at sea, these binoculars will keep you afloat. Compass and Rangefinder built-in to accompany you on your voyage. Carry bag with a nylon neck strap for maximum comfort included.HD Prisms..
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 ..
