LEUPOLD & STEVENS INC Pro Guide HD Leupold 172675 BX-4 12x 50mm 263 ft @ 1000 yds FOV Shadow Gray Leupold's BX-4 Pro Guide HD Binoculars features a BAK4 prism, twist up eyecups, a central focus dial, and high definition performance with its calcium-fluoride lenses. 
 SPECIFICATIONS: 
Mfg Item Num: 172675 
 Category: BINOCULARS 
 Magnification :12x 
Objective :50mm 
Field of View :263 ft @ 1000 yds 
Eye Relief : Exit Pupil :3.9mm 
Short Focus :10 ft 
Prism Type :BaK 4 
Weight :28.5 oz 
Finish :Gray 
Case : Eyeglass 
Friendly : Twilight 
Factor : Focus 
Proofs :Waterproof, Fogproof