QHY4040 has a 36.9mm x 36.9mm square sensor with 9.0um pixels in a 4k x 4k array and supports 20FPS full resolution live video.
The QHY4040 camera uses a GSENSE4040FSI sensor with an image area of 36.9 x 36.9mm, 1.57 times larger than full-frame format, with higher resolution and image quality. The large area array has 9um pixels and an electronic rolling shutter, 86dB dynamic range, 3.7e- read noise and a peak QE of 74% at 600nm.
The QHY4040 has a USB3.0 high-speed interface with up to 5GB of bandwidth. The camera achieves 1:1 video output at 20 frames per second (8-bit) with 4096 x 4096 resolution or 8FPS in low noise 12-bit mode. As different clock rates affect read noise performance, the QHY4040 supports five readout clocks and 8FPS, 12FPS, 16FPS, 18FPS and 20FPS frame rates.
The QHY4040 has 2-stage TE Cooling that reduces the sensor temperature to -35 °C below ambient. TE cooling significantly reduces dark current and produces cleaner, lower noise images over long exposures.
