The QHY5-III 290 C uses SONY STARVIS Exmor R back illuminated CMOS sensor. The Starvis is means you can see very dim stars at realtime video. QHY5-III 290 C can capture mag 9 stars when connected with a 50mmF1.4 C-mount lens. To compare with the IMX236 sensor , it has twice sensitivity for visible light and three or more times in near infrad wavelength. QHY5-III 290 C has ultra low readout noise also. The back lluminate and low readout noise make this camera an ideal video astronomy camera. The 2.9um small pixel size is also idea for planetary imaging. QHY5-III 290 C has USB3.0 super speed interface and 180FPS at full HD output . The camera has 10/12bit ADC and it outputs the 8bit image or 12bit image. QHY5-III 290 Specifications COMPARISON OF QHY5-III SPECIFICATIONS