I have a like new QHY294M Pro camera with box, power supply and USB 3.0 cable for sale. It also comes with various adapters including a nosepiece and rings etc needed for a filter wheel.
This is a very sensitive camera with 90% QE and unusual quad pixel arrangement allowing a 46.8mp image at 1x1 binning or an internally binned 11.7mp image native. The 11.7mp is the mode I used and it works great. Super fast downloads and modest file sizes. It has a high gain mode and a low gain mode to optimise your exposure. It has a built in dew heater as well.
Here is the link to the QHY page describing this camera:
https://www.qhyccd.com/qhy294m-c-pro/
Pixels are a decent 4.63 microns in size which suits a lot of telescopes.
The sensor is same size as the popular KAF8300 sensor (micro 4/3rds).
So its a reasonably large sensor.Its generally regarded as an upgrade from the ASI 1600.
New these are $1899 at Bintel. I'll sell this one for $1,500 and I will pay for postage.
Price Drop - now
$1,350 and I pay postage to Oz.
If you were choosing between ZWO and QHY I would pick QHY (2nd camera with them and one with ZWO).
QHY have firmware that reduces glow and has a built in dew heater. Their firmware seems stable.
Build quality is a bit higher with QHY and no oil leak issues like ZWO have had.
Only selling to help fund a mount.
Greg.