TS adapter to M90x1 for the RAP2DEL focuser

This adapter allows the TS RAP2DEL focuser to be attached to RC telescopes from manufacturers such as TS, GSO, and Astrotec, using the M90x1 thread.

Telescope-side connection: M90x1 internal thread
Focuser-side connection: 70 mm diameter mounting collar (dovetail ring) – secured via three set screws
This adapter enables you to replace the original focuser on 6" and 8" Ritchey-Chrétien or Cassegrain telescopes with the TS-Optics RAP2DEL focuser.
The adapter also facilitates the attachment of the focuser to custom-built or upgraded telescope systems that feature an M90x1 external thread.
The focuser itself is not included.

Telescope adapter for the TS RAP2DEL focuser (M90x1 thread)
Upgrade your RC or Cassegrain telescope—equipped with an M90x1 connection—with this high-quality TS-Optics rack-and-pinion focuser. The focuser offers high precision, excellent stability, and great expandability, thanks to the M54x0.75 connection thread on the camera side.


Telescope-side connection: M90x1 internal thread – length 7.5 mm
Focuser-side connection: 70 mm internal diameter (smooth bore)
Focuser attachment: Secured via 3 set screws
Adapter length:

21.5 mm





M90 connection adapter