Starlight Adapter to 2" Schmidt Cassegrain Thread for 2" FTF20.. Focuser... best use with FTF2015BCR Scope specific adapter attaches to the 2"-24tpi thread on the rear cell of Schmidt-Cassegrain/Maksutov-Cassegrain telescopes
Normally, a telescope takes parallel light rays from a distant star and converges them to a point at the eyepiece focus. Barlowed laser collimation takes advantage of the fact that a telescope will work in reverse. /... /
Attaches to laser aperture for making the primary mirror adjustment quick, efficient and compact.
The Howie Glatter Barlow Laser Collimator Attachment diverges the beam just behind your barlow lens for accurate alignment.
Allows the user to make solo adjustments.
The Howie Glatter Barlow Laser Collimator Attachment fits the threaded aperture of any of Glatter holographic collimator.
Disc attachment with a small mounted barlow lens and flat white front surface screen.
Starlight Thermistor for Temperature Control... for Focuser Boss Digital Kit In the software download there is a step-by-step instructions on setting up and running the Temperature...