You will immediately appreciate the excellent light transmission of the TE-17W that was created to match the advanced optical system of Kowa's TSN 770/880 series of spotting scopes. This high performance 30x wide angle eyepiece has 7 lens elements and provides you with a generous 20mm eye relief. Kowa covers this eyepiece with a limited lifetime warranty. *Note: This eyepiece will not fit the older Kowa 77mm TSN 1, 2, 3, or 4 spotting scope bodies.
||Twists up and down for comfortable viewing with or without eyeglasses.