QHY versus ZWO
What about the differences between QHY183m and ASI183mm Pro?
It seems in ZWO's favour and QHY claims of reduced amp glow appear to be BS.
ZWO has the better cooling, larger buffer (256 versus 128mb). QHY specs are sketchy, ZWO is quite detailed.
ZWO has a built in hub, QHY does not.
But what are they like in the real world. QHY and ZWO much the same in performance or does the QHY perform a bit better with regards to amp glow?
Amp glow seems to be the big downer of CMOS sensors at present. Unless you go the ASI2600MC (no mono is available and not going either) or the ASI6200 both of which are expensive.
So if no amp glow and you want mono it seems the 6200 cameras are the only ones.
ASI6200MC sounds good but probably not great for narrowband which is an area these cameras seem to excel.
How much of an issue is amp glow calibrating out for these CMOS sensors?
I have seen some pretty spectacular images from the ASI183M. I imagine you don't go over 5 minute exposure time and you are probably on safe ground with good darks.
Greg.
|