snypex Knight ED 8 x 42 Hunting Binoculars with Waterproof Fogproof Shock Proof Extra-Low Dispersion (ED) Glass With Phase-Corrected Roof Prisms Durable Magnesium-Alloy Housing With Protective Rubberized Arm Nitrogen-Filled, Water and Fog proof Nitrogen Filled and Fully Water and Fog proof. Submerge to 1 Meter for 15 minutes Field of View at 1000 Yards -393ft FMC (Fully-Multi Coated) Close Focusing Distance - 4.56ft / Excellent brightness in all environments