The TE-10Z is one of three new eyepieces designed for the TSN-880 and TSN-770 spotting scopes. All eyepieces in this series have been completely redesigned to be used with the eyepiece lockig mechanism and to obtain the best optical performance. The TE-10Z is a 20-60x zoom eyepiece with 17mm of eyerelief and a field of view of 126-60 feet at 1000 yards. All eyepiece for the TSN-880 and TSN-770 Series are waterproof and filled with nitrogen gas to prevent the lens from fogging.
Kowa TE-10Z 20-60x Zoom Eyepiece for Kowa TSN-880 and TSN-770 Series Spotting Scopes