The effective image area is 27mm x 21.6mm. Compared to the QHY8L APS-C format of 23.4 x 15.8, the APS-H sensor is significantly larger with over 50% more image area. The reason for desiring an APS-H size mono sensor is that there are no other existing mono sensors in size between the KAF8300 (4/3inch) and the KAI-11002 (35mm format).
The QHY16200A belongs to the QHYCCD "A" Series Camera family. "A" stands for "ALL-IN-ONE". The camera includes a built-in motor driven filter wheel and natively supports the QHYOAG while consuming a minimum of back focus, precious for some optical systems. The filter wheels available for the QHY16200A accept 2" mounted filters, or 50mm unmounted round filters, in 5 or 7 position carousels.
This camera uses a mechanical shutter that has a butterfly shape. The shutter is directly driven by a motor with no other moving parts. The working life is almost unlimited. The shutter has two sides that block light and open spaces in between. The fan shape of the blades create even-illumination when opening, and even-darkness when closing for dark frames. This feature is of great benefit when taking flat frames or making photometric observations.