TS-Optics 2.5" Rack and Pinion Focuser with M90x1 Connection and 360° Rotation Reviews

Wrote by Darren H. on 24.09.2025

"I have replaced a TS MonoRail focuser I was having issues with (6 years old) - the new focuser is superb and works just perfectly! Quality and build is solid, and smooth operation. 5 stars all the way!"

Wrote by Swapneel K. on 26.04.2025

"Perfect fit to my GSO RC6. Also compatible with ZWO EAF."

Wrote by Paul D. on 25.03.2025

"This focuser was a nice upgrade for my 8 inch Classical Cassegrain telescope allowing me to collimate the telescope through the planetary video camera and hold the collimation from session to session. A very well made focuser. "

Wrote by Christopher G. on 12.02.2025

"The TS-Optics 2.5 R&P focuser (Model # TSFOCR25S) is a replacement for the stock focuser on my iOptron (GSO) RC-6. I am very pleased with the build quality. The iOptron stock focuser is fine for visual but when I load it up with a cooled camera, filter wheel and off-axis guider I struggle to get it to focus smoothly. No problems with the TSFOCR25S though. Coarse and fine controls are smooth. Clamp screws are secure. Overall excellent build quality. So far I am very happy with it. "

Wrote by John G. on 27.11.2023

"Fit my Orion 8"" Ritchey-Chrétien with no additional parts, significant upgrade over the stock focuser."

Wrote by Scott R. on 21.06.2023

"High Quality, great focus, smooth even action. It fit my Apertura 6 inch ( ~150 mm ) RC perfectly. Sehr gut! Danke!"