Hi-Lux Phenom ED binoculars produce superb image quality, critical during the low light hunting conditions of daybreak and dusk, with glass lenses meticulously polished to photographic quality for exceptional clarity and light gathering capability. Phenom ED binoculars deliver phenomenal edge-to-edge image sharpness with the addition of a flat view lens in the optical system. The High Definition, Extra Low Dispersion glass lenses eliminate color fringing and chromatic aberration.binoculars are compact, well balanced and comfortable to use, allow faster image acquisition and enable complete adjustment for individual eyesight.With RubberGuard armor encasing the magnesium-aluminum alloy chassis, the Phenom ED is an incredibly durable and lightweight binocular. Hi-Lux Phenom ED Field Flattened Binoculars are available in both 8x42 or 10x42 configurations. All Phenom ED Field Flattened binoculars are backed by our DiamondTuff Lifetime Guarantee.