QHYCCD small size COLDMOS camera series includes all the cooled cameras with sensor size below 1inch and includes the BSI (Back illumentated) and FSI (Front illumentated) CMOS sensor.
No one want to lost the frame in long exposure.QHY178,QHY290,QHY224 COLDMOS camera has built-in 128MB DDRII image buffer. To compare with the non big buffer camera, This memory will cache the image and avoid the frame lost. And this buffer allows the low performance computer and USB2.0 socket working.
QHY174 COLDMOS camera has two version. The standard version and the GPS version. The GPS version has the build-in GPS module to mark the high persion time information (up to 1 micro-second) to the image head. QHY174-GPS is the world first GPS pps based high percison hardware timestamping camera which is idea for occultations, transits, realtime 3D meteor flying capture, UFO 3D tracing, satellite 3D tracing, unmanned aerial vehicle 3D tracing monitor etc