On most of standard size binoculars models, there will be a thumb lever or wheel placed conveniently within reach so you can adjust the magnification without changing your grip or taking the eyepieces away from your eyes.
Size: 15 x 50Field binoculars made in Russia for Levenhuk, Inc. (USA). Lenses made of Russian optical glass, body made of aluminum alloy, a wide operating temperature range. Limited e..
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 ..