Curved base with leveling screws for 3.5" diameter Feather Touch focuser

Outside dimension is 6.0" square
Base comes complete with all mounting hardware.
The base has a mounting hole pattern of 5.25" to center
Focuser adapter part#A35-503TMB is needed to thread focuser into base.

Inside of base has M138x1 threads to thread tube adapter ring
Delivered with: Starlight curved base for 3,5" Feather Touch Focuser