starlight - Feather Touch® 2.0 inch Dia Dual Speed 0.8 inch DTT, Brake, 57mm Accessory Thread

fits 'Borg'

Feather Touch® 2.0" Dia Dual Speed 0.8" DTT, Brake, 57mm Accessory Thread (fits 'Borg')
Known to Fit: Borg   
Our 2.0" Series...

In general, 2.0" Feather Touch Focusers can be used on refractor-style telescopes, they can also be used with Newtonians in
certain situations depending on where the focal point resides.

A base-adapter or tube adapter ring (TAR) is required in all cases for installing the focuser onto your telescope. Optional
mounting base adapters are available for installing the focuser on catadioptric rear cells as well as on reflector optical tubes
and truss-tube Dobsonian secondary mirror cages.

There are coarse and fine focus knobs with an approximate reduction ratio of 10:1 for unrivaled accuracy and repeatability. Each
revolution of the fine focus knob results in a mere 0.070 inches of drawtube travel, making critical focus effortless. Fine focus
repeatability is on the order of <0.0005 inches.