
https://www.astroshop.eu/astronomical-c ... no/p,55058
" High QE Low Cost Camera: The SBIG STF-402M is a compact, economical, high QE camera with a scientific grade full frame CCD. It is excellent for educational use and photometric studies. Many users with larger telescopes and cameras consider The STF-402M to be the ultimate camera to use for guiding due to its high sensitivity and generous field of view.These cameras have a photometric quality, even-illumination shutter for automatic dark frames. The low noise and extraordinary QE of these sensors make these cameras among the most sensitive CCD cameras available at any price".