QHY have removed the bayer filter off the QHY168 and are looking for Beta testers.
http://qhyccd.com/bbs/index.php?topic=5908.0
I hope it works Ok as I will definitely save up for one.
EDIT: This is an APS-C camera - 4.8micron pixels, 14bit CMOS, 4952 x 3288 pix array, 3.2e read noise, 46,000 e Full Well
Cheers
Bill