I totally understand... I'm in the exact same boat. I just ordered my 4th Field Flattener, to see if I can get my curvature down a little bit more. Good luck!spectre wrote: ↑Sun Nov 03, 2019 12:51 am Thanks James, that looks like exactly what I need. The trouble with AP is that, when something is a little off, it really gets to be a bother when you know it could be better. That's where I'm at right now. It really doesn't look that bad, but I know it could be better and it'll just keep bugging me.
I'm off to Highpoint to see about getting that t-ring. With any luck this will fix my problem.
John
Also, you might want to add some spacers to your order, because it doesn't look like it's totally off the mark in your picture. My guess is you are about +1 or 2mm from where you want it. I would add a set of 5, 10, 15, and 20mm with m42 threads. And seriously,