This converter allows you to use the current Kowa TSN 660/600/82SV eyepieces with the older TSN-820 series spotting scope bodies.
This converter allows you to use the discontinued Kowa TSN 820M eyepieces with the TSN 770 and TSN 880 spotting scope bodies.
This converter allows you to use Kowa TSN-600 and TSN-660 eyepieces with any Kowa TSN-770 or TSN-880 spotting scope.
