I am a former proud owner of a '77 orange tube C8. Have also owned newer non-Edge Celestron OTA versions inclusive up to C11. I see classic C8s available for bargain used prices and just at a stage of window shopping at this point. I know there are a few Celestron users out there and wondered for imaging with a full frame camera like a 6D or A7s what would be a recommendation between a new C8 Edge with a focal reducer or a classic C8 using a reducer/corrector? I'm more focused on flatness of field and quality of the image but can sacrifice a little difference in the sharpness/IQ of image based on price differential (say a difference of $500 or more).
Barring the central obstructions issues, cooling, mirror shift or of the inherent issues of the classic vs the modern design, would they yield mostly equal results for AP imaging fitted in the manner as described? Would one be considered better at producing a better image and, again, is it worth the price differential between a new Edge with reducer versus the much simpler less expensive classic with the reducer/corrector.
If there is a post or thread somewhere that I have not found, please feel free to direct me there.
Thank you !