TS Optics Base for Newtonian focusers for tubes with diameter larger than 285mm

With this base you can attach several focuser models currently available on your Newtonian telescope.

Fits all newton telescope focusers with a male dovetail 76-78mm.

Optimized for tube diameter ca. 300 mm, also fits tubes from 285mm diameter.

The base also fits flat surfaces.

Dimension: 90×90 mm

thickness: 7 mm – smallest position

The focuser is held in place with two slug screws from the side.

Distances of the holes for screws attaching the base to the tube: 70mm parallel to the tube, 73mm sideways