WTB:
I'm looking for the Adaptor for 2" visual back to C90, or Adaptor SCT Thread to Maksutov female 1.375"x24TPI [almost 35mm] in order to attach 2" visual back to C90.
Baader NX4-ETX Universal Adapter
Sample here:
https://agenaastro.com/baader-sct-t-ada ... 4-c90.html
Thank you.