Hey. I wanted help identifying the thread size on my finderscope. After removing the eyepiece, the thread seems to be 28mm diameter. I tried inserting a standard 1.25 inch accessory but it was too big.
The finderscope is by astro-tech but it is the same as to the sky-watcher 8 x 50 (and other generic ones).
The pitch seems to be 6 tpi or about 4.2 mm.
I wanted to buy a coupling to attach to my webcam (Creative Ultra NX) to use as a guiding camera and scope.
Any help will be appreciated.
Edited by theabsurdist8, 08 August 2020 - 12:34 PM.