Explore Scientific 40mm 68 degree Series Argon-Purged Waterproof Eyepiece
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Explore Scientific 40mm 68 degree Series Argon-Purged Waterproof Eyepiece, Explore Scientific 40mm 68 degree Series Argon-Purged Waterproof Eyepiece. This eyepiece by the professionals at Explore Scientific uses advanced computer design combinations of low dispersion and high refractive index optical glasses and durable multilayer deposition coatings. The Explore Scientific 40mm 68 Series Hyper-Wide Argon-Purged Eyepiece is impervious to internal fogging and contaminants such as fungus growing in between the lens elements. Observe the vast night sky in comfort with the Explore Scientific 40mm 68 Series Ultra-Wide Argon-Purged Eyepiece for as long as you want. Specifications for Explore Scientific 40mm 68 Series Ultra-Wide Argon-Purged Waterproof Eyepiece: Focal Length: 40mm Length: 114.2mm Width: 80.3mm Weight: 35.2oz; 998g Barrel Size: 2.00" Eye Relief: 31mm Field Stop Diameter: 52.2mm Package Contents: Explore Scientific 40mm 68 Degree Series Argon-Purged Waterproof Eyepiece 68 Series 40mm Argon-Purged Waterproof Eyepiece; 2.0-inch O.D.