• Wide field of view reveals a larger portion of the the field, allowing you to view more objects.
• Large 50 mm objective lenses have tremendous light gathering ability, ideal for astronomical use

• Hydrophobic coating: keeps snow, water, and fog from making your vision blur.  
• Anti-reflective (AR) coating: improves the transmittance of light, reduces reflection from lenses, and eliminates stray lights.
•  Anti-radiation coating: to protect your eyes from radiation. UV coating: to protect your eyes from UV radiation. 
• Hard coating: to prevent heavy scratches from occurring on the surface of the lens. Photochromic coating: to make lens darken on exposure to specific types of light, most commonly ultraviolet (UV) radiation.

This HD binoculars watching comes with BAK-4 Prism and FMC film lens, which minimizes the loss of light due to reflection, thereby ensuring brighter and clearer high-contrast images. It has the effect of low-light night vision,

•  IP67 Water resistance, Fog-proof, designed to inhibit internal fogging, fit for daily use, and most outdoor environment, offering an excellent user experience.

Please do not take the binoculars to go diving.