Kowa 25x Long Eye Relief Eyepiece for TSN-770 and TSN-880 Spotting Scopes. Whether you are birdwatching hunting or just out on top of a mountain enjoying the landscape and trying to find the elusive Bigfoot through your spotting scope - this 25x LER Eyepiece TE-20H by Kowa helps you get the job done and see everything in fine detail. This eyepiece features a long eye relief and makes it user-friendly for those who wear prescription Glasses. With a superior optical coating for crisp and bright light transmission you cannot go wrong with Kowa. This eyepiece will fit the Kowa TSN-770 and TSN-880 Spotting Scopes. Specifications for Kowa 25x LER Eyepiece TE-20H: Magnification: 25x Exit Pupil (TSN-770): 3.1 mm Exit Pupil (TSN-880): 3.5 mm Eye Relief: 32.0 mm Lens Coating: Fully Multicoated Waterproof: Yes Angle of View: 2.3 DEGREES Fogproof: Yes Field of View: 120 ft at 1000 yards Features of Kowa 25x LER Removable Eyepiece TE-20H: Waterproof Fogproof Interchangeable Package Contents: Kowa 25x LER Eyepiece TE-20H for TSN-770 and TSN-880 Spotting Scopes Kowa 25x Long Eye Relief Eyepiece for TSN-770 and TSN-880 Spotting Scopes TE-20H