Covert Optics 8x42 Binocular Roof Prism Grey. These Binoculars by Covert Optics use Extra-low dispersion (ED) glass with Diamond Bright multi-coating to completely eliminate chromatic aberration and the prisms are phase-corrected to eliminate diffraction giving you amazingly sharp and bright images. The Covert Optics Roof Prism 8x42mm Binocular has an optimized lens system that results in the highest edge-to-edge resolution and the most vivid color fidelity of any Binoculars system on the market. For a binocular that is guaranteed to make you a better birder or hunter choose the Covert Optics Compact 8x42mm ED BAK4 Binocular. Specifications for Covert Optics 8x42mm Roof Prism Binocular: Manufacturer: Covert Optics Color: Grey Magnification: 8 x Objective Lens Diameter: 42 mm Prism System: Roof Prism Material: BAK-4 Water Resistance Level: Waterproof Length: 5.35 in Weight: 23.5 oz Condition: New Included Accessories: Standard Width: 5 in Shockproof: Yes Fogproof: Yes Features of Covert Optics 8x42 Roof Prism Binocular High quality ED (Extra-Low dispersion) Glass and BAK-4 phase-corrected dielectric coated roof prisms to minimize diffraction; Diamond Bright multicoating for maximum light transmission glare reduction and scratch-resistance Package Contents: Covert Optics 8x42 Roof Prism Binocular Soft Case Neck Strap Lens Covers Lens Cloth Covert Optics CC0081: 8x42 Binocular Roof Prism Grey