OK, I'll weigh in on this since I own a C8 Evolution, purchased new in 2018, plus a SW 180 Mak, purchased new in 2017. Tonight I viewed Jupiter through both scopes.
I'll say right off that both scopes are stored on my covered patio, so there is no adjustment time regarding temperature. I have also recently collimated the C8, whereas I have never made any adjustments to the Mak.
Tonight I first mounted the SW Mak onto the Evo mount and had a look using a Baader Hyperion Mark III zoom ep at the 20mm setting (about 137x). This telescope also has a Moonlight Crayford focuser and an Orion 2" mirror diagonal. After viewing Jupiter for about 1/2 hour, I switched the OTAs and had a look through the C8, same ep but at 16mm setting (127x). This scope has the standard focuser, and a William Optics 2" dialectric diagonal. The immediate subjective impression was the C8 was clearly sharper. If I said Jupiter appeared to be crossed by 60 super-thin lines drawn with a mechanical pencil when viewed through the Mak, I would raise that number to 100 lines when viewed through the C8. Festoons only vaguely seen with the Mak were quiet definite through the C8.
Yes, there are variables, the differences in diagonals and the Crayford focuser extending the focal length of the Mak which renders my magnification calculation askew--- but the bottom line is this: Looking first through the Mak, I was pleased with the image. Looking secondly through the C8, I said out loud, "Oh yeah!" It was a sharper view. Maybe a less experienced astronomer than myself might have equated the two scopes, but I have over 50 years observing experience, and subtle differences are more apparent to me.
If I had to give up one of these scopes, it would be the Mak. Now the bad news--- if I had known in 2017 what I know now, I could have saved myself some dough--- which I would have undoubtedly spent on some other astro gear anyway...
The view through the C8 definitely rivals the best view of that planet I ever had, which was through my GEM-mounted 10-inch Meade Newtonian (also known as The Water Heater) back in 1994, during those halcyon days of the Shoemaker-Levy impacts. I've no doubt I would be able to see those atmospheric blemishes with both of these scopes, but I would for sure want to have this C8 on hand.
Cheers, and clear skies!
Edited by khingdheano, 02 August 2019 - 10:51 PM.