Features Lifetime Warranty with registration* Waterproof Fully Multi-Coated Rubber Covered Tripod Carry Case Video Specs Item Number 788 Magnification 20-60X Waterproof Yes Field of View 113/55/1000yds Lens Coatings Fully-Multi-Ctd Eye Relief 19/18mm Exit Pupil 40.0/1.33mm Focuser Type Top Objective Lens Diameter 80mm Close Focus 24/30ft Prism Porro Length 17.5" Warranty *USA Limited Lifetime Warranty when product is registered within 60 days of purchase. Click Here to register. CA Residents: Prop 65 WARNING(S)