With a field of view twice as wide as standard binoculars, our Xtra WideREG binoculars dish up double the action. Two cars at opposite ends of the track, the pass being completed as the QB gets crunched, a friend in the front row and the entire cast on stage feast your eyes on every ounce of the show. Whether you choose the standard or compact size, you'll have twice the viewing area and see more of what you came to see. Fully coated optics for superior light transmission and brightness Extra wide field of view Focus free convenience Magnification X Obj Lens 4 x 21 Size Class mid size Focus System Free Prism System NA Prism Glass NA Lens Coating Fully Field of View ft1000yds m1000m 900300 Exit Pupil mm 6 Eye Relief 10 Eyecups Fold Down Weight ozg 14.5411 WaterFog Proof No Adapt to Tripod No