Availability: Item has been discontinued and is no longer available.
The Baader 2" RT Steeltrack Crayford Focuser for refractors can be used with this adapter set to enable it to be attached to several different brands and sizes of telescopes. The RT Steeltrack Adapterset consists of 4 parts (see third product photo):
- Part 1: 72mm dovetail ring on one side for attachment to RT2 focuser body. M68 external thread on the other side, fits directly onto Zeiss.
- Part 2: Expanding ring. Threads on to Part 1 above. Has M68 internal thread on one side and M80 external thread on the other side. Fits directly onto Zeiss.
- Part 3: Large lock-ring. One side slides over combined parts 1+2. The other side has an M90 internal thread. 3 chrome grip 'spokes' permit easy rotation and locking of the focuser.
- Part 4: Base ring. One side has an M90 external thread to connect to Part 3 above. The other side has a slip-fit 96mm OD flange. This slips inside of tubes with approximate ID of 96mm. ID of this side is 82.9mm.
When all 4 parts are combined, the RT Adapterset slips into 96mm ID tubes (used on Celestron/Skywatcher telescopes, or any other similar sized tube). The adapter is then attached using three M3 screws around the periphery.