I have a RT224 and really like it but I am looking to upgrade to a bigger FOV.
I am on the fence between cooled and uncooled ASI294.
Do you have any issues with the the dark frame calibration on nights with big temperature drop?
I've seen pictures of the 294's starburst amp glow patterns and I am concerned that it would start to show up in the final stack with aggressive stretching as the ambient temp drops below the the dark frame temp.
If you have experienced this, how much dark frame temperature mismatch can you tolerate before there are noticeable issues with the uncooled camera?
I shoot at <f4 unfiltered under Bortle 5 skies, so the reduced dark current due to cooling won't benefit me much, I'm mostly interested in the stability of the dark frame calibration throughout the night.
I run into this issue with my uncooled RT224, but the amp glow is a smooth gradient so I can live with it, I'm afraid the 294's starburst pattern might be a lot more noticeable.
I run remotely, so it would be a hassle to go outside to the scope, remove and cap the camera, retake darks, replace the camera, refocus, and then retake flats every time the temperature drops 5C.
Any advice or related experiences would be appreciated.
I'm hoping to get one if they do a black Friday sale.