Starlight Instruments BA35FL Focuser Base
|The Starlight Instruments BA35FL flat base may be used to mount a 3.5-inch Feather Touch focuser to the upper cage assembly of a truss tube Dobsonian telescope. |
Flat base with leveling screws for 3.5" diameter Feather Touch focuser
Outside dimension is 6" square
Base comes complete with all mounting hardware.
The base has a mounting hole pattern of 5.25" to center
Focuser adapter part# A35-503-TMB is needed to thread focuser into base.
Inside of base has M138x1 threads to thread tube adapter ring.