I purchased this item getting prepared for future modification of the Finder scope into a Guiding scope.

precise part well machined

This is another quality adapter by Baader. It has nice practical design features like the chunky finger grip to make it easy to tighten or loosen, and small holes into which
you can insert a small Allen key, for example, should you need a little more leverage to loosen it. Top notch.

Perfect match with an RA Skywatcher finderscope to easily reach focus with my zwo 120mc-s. Thanks Flo for a great service (again).

I ordered these while in the process of setting up adaptors for my CCD cameras. With a selection of them it's easy to make up the exact size you need.
Quality and finish, and screw threads are faultless
A welcome addition to my parts box!!

Well made and easy to use. The gripping ring is a good feature especially when fingers are cold

Quick delivery and sorted the focus for my oag guide camera beautifully