Starguide - A Practical Guide to Astro-Photography

Remark: This focuser is part of the original TS-Optics 8" Ritchey-Chrtien Pro RC Telescope - OTA. In my experience, this focuser is unfortunately not suitable for moving heavier equipment (e.g., a combination of CAA camera rotator, filter changer, and an ASI2600 MC-Air  camera) in an almost vertical position and tends to slip, which particularly hinders the reliable use of an EAF drive for autofocusing. In this case a TS-Optics M90/2.5" Rack and Pinion Focuser is the better solution.

Technical data:

The Monorail focuser combines the ease of movement of a Crayford focuser with the stiffness of a rack-and-pinion focuser. Thus astrophotography becomes a success.

•  Massive stainless steel bar instead of small ball bearings for more stiffness.
•  No tilting anymore when locking the drawtube.
•  360° rotation for optimal object alignment
•  Female M69x1 thread for threaded adaptions
•  2" and 1.25" compression rings for push adaptions
•  1:10 dual speed for accurate focusing
•  Motor focus can easily retrofitted
•  Lined scale for quick retrieving of the focus.
•  Easy operation

Created with the Personal Edition of HelpNDoc: Leave the tedious WinHelp HLP to CHM conversion process behind with HelpNDoc