Nikon's 82mm objective Fieldscope with Extra-low Dispersion (ED) glass.
Large 82mm objective lens for the brightest image
Extra-low dispersion (ED) glass for chromatic aberration compensation and brighter, clearer viewing
All lenses and prisms are multilayer coated for the brightest images
Waterproof (up to 2m/6.6 ft. for 5 minutes) and fog-free with O-ring seals and nitrogen gas
Built-in type slide hood
Easy-to-use sight on the hood
Eight different eyepieces compatible