The Internet has previously published articles about the new Quad Pixel autofocus system , which Canon has been working on for quite some time, and which is positioned as a natural evolution of the current dual-pixel autofocus (DPAF).
What is QPAF?
Canon’s current DPAF splits the pixel in half and uses the difference in the signals of one half and the other to determine how far away the subject is. Using this information, you can calculate the distance to focus on the subject. However, this method may not be accurate if the lines of contrast you are focusing on coincide with the pixel separation, as then the signal difference will be minimal. This means that these sensors are generally better suited to focusing on vertical lines rather than horizontal ones, which they may have trouble with.
TheCameraInsider reports that the main characteristics of the upcoming Canon cameras, EOS R1 and EOS R5 Mark II, have already been published. It is claimed that QPAF will be at least part of the EOS R1 presentation. It is also reported that the EOS R5 Mark II will most likely receive QPAF.
If Canon is truly going to make an impact with its flagship mirrorless camera, it will have to wow audiences with innovation, and the QPAF is the right step in that direction.