focuser extension and rotation unit

Telescope-side accessories for 3" RT Steeltrack Crayford focuser

39mm focuser extender and rotation mechanism for 3" RT Steeltrack®.

With 4" dovetail ring on one side, and with 4" dovetail ring mount with 3 locking screws and 3 holding screws.

This 4" extender is freely 360 degrees rotatable between focuser and telescope and also provides the possibility of mounting our finder scope base (#10653, not included in delivery), so as to have a fully pivoting finder scope (which saves the corresponding finder scope mounting holes in the OTA)