Jump to content

sgl_imaging_challenge_2021_2.thumb.jpg.72789c04780d7659f5b63ea05534a956.jpg

Merlin66

Members
  • Content Count

    12,821
  • Joined

  • Last visited

Blog Comments posted by Merlin66

  1. Gina,

    You don't have to worry about or consider any focusing of the donor scope.

    The etalon NEVER moves relative to the donor after initial set-up. It's always -200mm from the prime focus.

    Think about the donor just as a fixed replacement for the original gold tube in the PST.

    Final focusing is always achieved behind the etalon - I use a Borg helical focuser on my PST Mod.

     

     

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. By using this site, you agree to our Terms of Use.