Why Canon's cutting-edge sensor tech may not cascade down to photographers

The Canon MS-510 surveillance camera is the second to use its SPAD sensor. Image: Canon Canon has announced its second camera based around a 'single photon avalanche diode' (SPAD) sensor. It's a completely different sensor technology to the CMOS sensors we typically encounter, based on a completely different physical phenomenon, and able to measure the arrival of individual photons. The MS510 is a box camera, designed for applications such as nighttime border surveillance and maritim...