Adaptation of the TS 2.5" Flattener to William Optics 3" Focusers

This adaptor provides a direct connection between William Optics 3" focusers and the TS Optics 2.5" field flattener. The flattener is screwed directly onto the focuser for a firm connection.

-- William Optics FLT 110 + 132
-- William Optics FLT 98 with aluminium tube