Explore Scientific 100° Argon Purged Eyepiece 20mm (2")Explore Scientific 100° N2 Eyepiece 20mm (2")
This 20mm eyepiece has a 100 degree Apparent Field Of View and the body of the eyepiece is nitrogen-purged and waterproof preserving the internal elements to remain as pristine as the day they were assembled. The sealed, dry environment is impervious to internal fogging and contaminants such as fungus growing in between the lens elements.
Optical Design: 9 Elements; Combination of: Dense Crown, Light Crown, Dense Flint, and Lanthanum Optical Glasses
Focal Length: 20mm
Eye Relief: 14.5mm
Apparent Field: 100°
Coatings: EMD™ (Enhanced Multilayer Deposition) Coatings
Body: Anodized Black Aluminum; Laser-Etched Description and Serial Number; Rubber Grip: Internally O-Ring Sealed and Argon Purged
Barrel: Stainless-Steel, 2-inch, Double Taper, Accepts Standard 2-inch Filters
Eyecup: Rubber Folding Type
Eyepiece Weight: 2lbs
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