TSN-EC2 eyepiece conversion ring
Required when using a previous model TSN-820/820M series eyepiece with a TSN-880/770 series.
When other model eyepieces are used with TSN-880/770 Series scopes, not only will the specifications including the
magnification change, but there may be cases where an adequate optical performance cannot be obtained.
Ready to ship today,
delivery time approx:1-3 workdays