I use the ASI183MC and ASI294MC uncooled with a Skywatcher 130 PDS Newton f/5 and I am very satisfied with both of them. ASI294MC (4144 x 2822 px) with a bigger sensor is much more sensitive than the ASI183MC (5496 x 3672 px).
Here some of my stacks I did with the ASI294MC
As having in my actual f/5 EAA Setup only a 5" mirror I would suggest under any circumstances for a setup with small mirror the ASI 294MC.
By the way, at the standpoint of view to improve signal noise effects, cooling is to my knowledge just a rumour and the effect is nearly not existing. Very interesting for understanding how "useless" or "not important" cooling is will be shown in this linked video, where CEO Robin Glover from Sharcap explain it in detail.The only advantage of cooling in my understanding with EAA is that it will allow you to operate the camera under fixed conditions. Normally it makes sense to have been done the darks with same condition, parameters and identical temperature as the standard photos. So cooling to a fixed temperature may help. I just have a library with darks, done with different temperatures and up to now I couldn't see any problem even when temperature is somehow different. Many users claim about amp-glow special with the asi294MC where cooling may help. But this is more a problem when you do long time exposures. So again for an EAA setup cooling is not an important feature.
I will get shortly for my 10" Dobson Newton f/5 an EQ platform and I am very excited to test both cameras with the 10" mirror which is able to spend much more light than my small 5" newton. And in the moment, not having done any real testing, I feel with the big newton the ASI183MC can be a perfect camera with bigger resolution. But in the end it is always a personal feeling and how you work with it and what you want to see. I am sure with the ASI294MC you are not doing any thing wrong!
Hopefully within a short time a can deliver real facts by comparing both cameras with a 10" Newton and not just a feeling!
Kind regards from Munich - MunichAtNight - Ewald
Edited by MunichAtNight, 14 July 2021 - 08:16 PM.