Fully multi-coated premium Hoya ED glass provides premium optical quality Waterproof and anti-fog for any environment Durable magnesium alloy body without overweight Large field of view and excellent close focus Three-stage rotating eyecups and a large focusing wheel in the middle help you adapt to your viewing style The HD IV 8420 (8x42) binoculars from VANGUARD are the next evolutionary stage in the popular VEO optical series. These high-quality binoculars offer all the features you expect from a high-priced set - but without the four-digit price. Nature lovers, adventurers, travelers, sports fans, bird watchers and outdoor athletes all agree that VEO optics deliver top performance without breaking your budget. VEO HD IV binoculars feature extra-low dispersion (ED) Hoya glass and phase-corrected SK-15 prisms that virtually eliminate chromatic aberration and produce true color fidelity images across the entire field of view with improved contrast. The glass and prisms are complemented by an anti-reflective and fully multi-coated optical system that improves light transmission for bright and clear images with greater performance in low light. These binoculars are user-friendly and comfortable. A large, ergonomic center focus knob makes it easy to adjust the VEO HD binoculars. In addition, the three-level adjustable eyecups ensure that you can adjust the eye relief for viewing with or without glasses. VANGUARD VEO HD binoculars are waterproof and anti-fog. In addition, the scratch-resistant lenses are coated with a coating that prevents water drops from sticking.