• The QHY294M camera has an 11.7 Megapixel, 4/3-inch, back-illuminated, cooled, monochrome CMOS sensor.
• On-chip binning has been unlocked.
• Short back of focus of 11.5 mm.
• The optical window has a built-in dew heater and the sealed CMOS chamber.
• The QHY294M has an internal 256MByte high-speed DDR3 image buffer.
• Fast 16.5 frames per second at high resolution (11.7 MP) with 14-bit A/D. 

The Small Off-Axis Guider by QHY has 35 mm to the center point. It is a thin and solid design only being 10 mm thick. Adding an M42 thread adapter ring will add 3 mm for a total thickness of 13 mm. There are six 3 mm through holes in the OAG for direct connection to the QH-QHYCFW2 and QHY A-series camera.

The prism position can be adjusted and can be locked down to fix its position. The prism is 8 mm x 8 mm size and the aperture between the prism and mirror is 8 mm in diameter. The QH-QHYOAG has a multi-thread 1.25-inch focuser build in which has a locking thumbscrew to hold the guide camera after focusing.