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Nikon Binoculars Yu 4X10D CF Champaign Gold

Product Features
magnification twice 4 object lens Effective diameter mm 10 real-field-of-view degree 100 appearance field-of-view degree 386 400 Field of view m in 1000 m Diameter of 175 pupils mm 25 brightness 63 Eire Leaf mm 137 -- the shortest focal length m 12 Mass weight g 65 height mm 52 Width mm 1 93 Interpupillary-distance adjustable range mm Apparent field of view which a 5772 1 strap through part removes It is a new notation numerical value based on ISO14132-12002 Inside is a notation numerical value conventionally Shortest focal length In the case of the emmetropic eye which has not adjusted