Bak-4 roof prism is highest quality prism material. Fully multi-coated lenses and prisms enhance light transmission and results in clearer images. L ifetime warranty. Phase coating produces sharp, high-contrast images with increased resolution. Long eye relief for use with or without glasses.
Body cavity is filled with nitrogen gas and completely sealed.
Nitrogen does not condense therefore the binocular will not fog internally due to extreme temperature change. Bak-4 roof prism is highest quality prism material. Fully multi-coated lenses and prisms enhance light transmission and results in clearer images. L ifetime warranty. Nitrogen does not condense therefore the binocular will not fog internally due to extreme temperature change.