Explore Scientific 68 Degree 34mm Argon-Purged Waterproof Telescope Eyepiece 2 inch

The Explore Scientific 68° Series Argon-Purged Waterproof Telescope Eyepiece is designed for high contrast, high resolution, and superior flat field characteristics. It features advanced computer design, low dispersion and high refractive index optical glasses, and durable multilayer coatings. Experience a full-immersion view with its long eye-relief and 68° apparent field. The eyepiece includes a removeable and foldable soft silicone rubber eyecup for observer comfort.Key Features:* Argon-purged and waterproof design prevents internal fogging and contamination, ensuring pristine internal elements.* Impervious to fungus growth between lens elements.* Easier to clean without risk of cleaning solution seeping between elements.* Each eyepiece is tested in one meter of water for 30 minutes to ensure a perfect seal.Specifications:* Focal Length: 34mm* Length: 100.8mm* Width: 69.6mm* Weight: 685g (24.1oz)* Barrel Size: 2.00 inches* Eye Relief: 26.4mm* Field Stop Diameter: 38.6mm