Hope other users could help me here. I have a Astrotech 130 EDT refractor and a Astrotech 0.8x FF/FR to use it for astrophotography. Recently I got a 2" Optolong L-Enhance filter and wanted to use it with the reducer but not able to find the thread to mount it. The description on astronomics site says
The 2" telescope-side barrel of the reducer is threaded for standard 2" filters and has a safety groove.
Attached is a picture of that. Currently its being used with a Canon DSLR so another side of it is attached to a T-ring. It looks like the 115EDT one has proper threads but not the 130EDT one. Any suggestions on how to use this reducer-flattener with a filter ?
Edited by mostvisited, 28 February 2021 - 02:56 AM.