New here, I am just starting out in Astro, I have a TS optics 6" F4 (154/600), with the TS optics 2" 0.95x Coma max field corrector, shooting with my existing full frame EOS R with M48 RF T adapter to the coma corrector.
Is this level vignette considered acceptable/normal for full frame ? Or is there something I change to improve it or is it just a matter of "fix it in post"..
Quick test shot before clouds rolled in, was during alignment of the rig so ignore the trails etc..

Thanks!
Cam