This 2"/1.25" reducer adapter is recommended for SkyWatcher Crayford focusers. It allows the use of 1.25" accessories, or - by removing the upper part - the attachment of a camera or astro camera using the installed T2 thread.
Thanks to its design, it guarantees focus for both visual and photographic use with Newtonian telescopes manufactured by SkyWatcher. It is compatible with both single-speed and dual-speed SkyWatcher Crayford focusers.