Nikon 20x Wide EDG Spotting Scope Eyepiece fits Nikon 85mm EDG Fieldscope and gives 20x power for 85mm Spotting Scope by Nikon. Ultra-Wide Field of View of this Nikon Spottingscope Eyepiece captures all the action. This Nikon Spotting Scope Accessory features Nikon 's exclusive and legendary ED (Extra-low Dispersion) Glass Lenses that deliver superior sharpness and color correction for unmatched detail resolution. Field Scope Eyepiece from Nikon has fully Multicoated Optics and Multiple layers of anti-reflective compounds on every glass surface for bright, vivid sight pictures. Nikon 20x Wide EDG Fieldscope Eye piece is water resistant - up to 2m under water for 10 minutes.