QHY168C has a APS-C format 16mega pixels, 14bit CMOS sensor IMX071. This sensor is also used in the D5100 camera. It has 3.2e low readout noise at lowest gain and 2.3e low readout noise at unity gain(system gain = 1e/adu). QHY168C has a nice dynamic range close to 14STOPs.
True RAW Image Output
QHY168C has the same CMOS sensor like D5100. Although DSLR has the RAW image output. But typically it is still not the really raw image. You will find the de-noise sign on the raw images from the hot pixel styles. While the QHY168C offers the TRUE RAW IMAGE OUTPUT and it gives original signal and keep the max flexibility of astronomy image process.
Unique Thermal Noise Reduction Technology
Besides the 2-stage TEC, QHYCCD has an unique thermal noise control technology to get the CMOS sensor very low thermal noise and make whole 165/168/247/367 product line has much better thermal noise performance than competitors.
128MB DDRII Image Buffer
QHY168C has 128MB DDRII image buffer to help the image cache to avoid the risk of frame lost. The data will store in the DDR for first then transfer to computer. It will avoid the USB port too busy when there is more USB3.0 camera connected.
With the long time experience on the cooled CCD camera design. QHYCCD has the fully anti-dew technology for both CCD sensor surface glass and the optic window glass. QHY168C has the electric heating board for the CCD glass windows to prevent the window get dew and the silicon gel tube socket design for control the humidity within CMOS chamber.
AR+AR optic window
In order to avoid the halo around the bright star. The QHY168C has a AR+AR coating optic window rather than the common IR cut window for OSC color cameras. So you need to use your own IR cut filter (most L filter can do that) on front of the camera. You can install the 2inch filter on the M48 thread of the 2inch T ring. Or QHYCCD supplies an optional 2inch filter holder for QHY168C to allow you put this filter when connecting with a flat field corrector.