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