Sony IMX224 Said to Provide Sub-Electron Read Noise

RKBlog: Sony 1.3MP 3.75um pixel IMX224 sensor inside astronomical camera is said to have measured read noise of 0.75-1.5e-, depending on the gain. Sony has not officially specified the read noise value for IMX224, although it emphasizes the sensor's high sensitivity. The official ZWO ASI224 camera page only talks about 1.5e- read noise.

ZWO ASI224 camera

Thanks to PM for the link!