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 from the one half and the other half to determine how far away the focus is. Using this information Canon can calculate the distance the lens has to move to focus on the target at that pixel. However, this method is prone to be very inaccurate if the lines of contrast that you are focusing on, are aligned to the split of the pixels, since then the signal difference would be minimal. This means that usually these sensors are better suited to focus on vertical lines, versus horizontal which they can struggle with.
Richard https://www.canonrumors.com/canon-patent-application-full-frame-quad-pixel-sensor/
TheCameraInsider is now reporting that select dealers have seen a presentation on core specifications of Canon’s upcoming cameras, the EOS R1 and EOS R5 Mark II. It’s claimed that QPAF was at least part of the EOS R1 presentation, but that the EOS R5 Mark II will likely also come with QPAF.
If Canon is really going to impress with a flagship mirrorless camera, they are going to have to innovate the space, and QPAF would be a step in the right direction.
We have been unable to confirm this information ourselves, but we think this is highly likely to happen and we’d be surprised if both the EOS R1 and EOS R5 Mark II sensors aren’t QPAF capable.
Source: The Camera Insider
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