I am finally looking at getting a full frame CMOS sensor. I started out with an ASI183mm Pro and its a good performing camera although the small pixels really require good seeing. I also have ordered a QHY294M for galaxy imaging and it seems to be a nicely designed and flexible camera on paper.
I have been following threads about the ASI6200M and the qhY600M Photographic version and there seems to be a lot more posts about the ASI.
The QHY version though seems to me to have a few advantages. It costs a bit more but its the industry grade sensor versus the consumer grade. I take that to mean the Industry grade is considered to have lesser defects and thus more reliable and durable much like CCDs had engineering grade, class 2 and class 1 sensors. I know it costs more but its worth it for me as I plan to use it for a long time and I want long term performance (CCDs degrade slowly over time and I assume CMOS do as well otherwise mirrorless cameras would not update their bad pixel maps every month like they do in Sony's).
QHY also has the various readout modes which may be useful (perhaps not so much).
The ASI6200M has recently had a thread about microlens reflections in some images. Not good. It may be a narrowband filter issue or a weak antireflection coating but whatever its not a good thing. I haven't heard of this being an issue on QHY600M cameras.
Per QHY owners driver software issues seem to be a thing of the past and the main objection to QHY.
QHY have a firmware fix to reduce the background random horizontal pattern noise this sensor can generate. ASI does not.
Apart from that I am not aware of any real differences. Perhaps one has slightly better cooling than the other, the ASI has a built in hub (usually a very good thing as you always have a guide camera cable and a filter wheel cable).
Any advice from owners of either brand?
Thanks in advance.
Edited by gregbradley, 24 October 2020 - 12:54 AM.