Bushnell Ben842 Engage EDX 8X 42mm BaK-4 Roof Prism Black Magnesium The Engage EDX Is Backed With The All-Weather Assurance Of Bushnell's Exclusive EXO Barrier Lens Coating - It repels Water, Debris, Oil And Fog. The Fully Multi-Coated Optics Offer Maximum Brightness And Clarity And They're housed In a Lightweight And Rugged Magnesium Chassis. Ed Prime Glass And a Locking Eyepiece Diopter Ensure Razor Sharp images Every Time. The Pc3 Phase Coating brings To The resolution To The highest Level And The Dielectric Prism Coating keeps Light Transmission High. The Result Is The Best Viewing Experience Perfect For birding, Hunting, Or General Observation. Adapts To Tripod. Magnification: 8X Objective: 42mm Field Of View: 426 ft @ 1,000 yds Eye Relief: 19mm Exit Pupil Diameter: 5.30mm Short Focus: 6 ft Prism Type: BaK-4 Roof Weight: 23.50 Oz Finish: Black Focus Type: Close Optic Coating: Fully Multi-Coated Proofs: Fog/Waterproof