Guide to Tilt and Spacing Analysis (Download Link in Listing)

A guide to fixing tilt and spacing using objective analysis.

Download Here

There is also a companion thread with a lot of good info and contributions from other people on Astrobin here:

  https://www.astrobin.com/forum/c/astrophotography/equipment/fixing-the-dreaded-tilt-and-backspacing-error-in-optical-systems-with-objective-analysis/?page=1