1. Large 82mm objective lens for the brightest image 2. Extra-low dispersion (ED) glass for chromatic aberration compensation and brighter, clearer viewing 3. All lenses and prisms are multilayer coated for the brightest images 4. Waterproof (up to 2m/6.6 ft. for 5 minutes) and fog-free with O-ring seals and nitrogen gas 5. Built-in type slide hood 6. Easy-to-use sight on the hood 7. Eight different eyepieces compatible
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