New Nikon 8311 Prostaff Waterproof Spotting Scope.Nikon ProStaff Spotting Scopes are waterproof, fogproof and were designedwith a super fast bayonet eyepiece connection. 82mm model looks as good as they work. A specialpeep sight gets you on target faster than ever before.SPECIFICATIONS:Mfg Item Num: 8311 Category: OPTICS - SPOTTING Magnification :20-60xObjective :82mmField of View :99ft @ 20xEye Relief :15.2MM @20xTube Diameter :N/ALength :15"Weight :42.3 ozFinish :BlackAccessories :Vue-thru case