Last week, Richard reported on a couple of Quad Pixel Autofocus patents, which is something that Canon has been working on for quite some time. It’s the natural evolution of Dual Pixel Autofocus (DPAF). Quad Pixel Autofocus What is QPAF? Canon right now splits the pixel in half and uses the difference in the signal … Continue reading Quad Pixel Autofocus is ready for production [CR1]