Canon Predicted to Present Quad Pixel AF Technology

Canon is predicted to develop the Quad Pixel Autofocus sensor as the successor coming from the Dual Pixel AF technology. Reported from PetaPixel (28/3), there is a patent that has recently come out showing the sensors in which each pixel is divided into four areas, which were only two.

It first came out on the EOS 70D DSLR camera in th. 2013, Dual Pixel AF divides each pixel on the sensor into two light-sensitive diodes. Since each member of the pixel diode detects rays via a separate microlens, a token is able to be analyzed to get focus Info. The result is a fast and accurate phase-detection AF (PDAF) system for photos and videos.

"Canon currently takes advantage of a dual pixel autofocus sensor. But if you've ever tried to make use of the EOS R or EOS M in landscape orientation to focus on a horizontal line, you'll soon understand that the PDAF sensor only happens one way, and has minimal sensitivity in the opposite direction, "says Canon News.

Future design will handle the case. It seems that the patent represents a 20.7 MP sensor that contains 83 million focus detection points.

"The pixel size seems to be 4 micrometers, which would have a wide impact of approximately 22mm, or in other words an APS-C sized sensor," said Canon News.

Canon probably wanted to examine the decrease in pixel density on the sensor for better autofocus systems.

"Canon takes advantage of 180nm technology for APS-C sensors capable of the use of copper wires. This is probably great for the 20 MP image sensor. There will be a loss of pixel separation efficiency and able to bring the impact Canon lowers pixel quantity on the APS-C sensor, "writes Canon Rumors. 

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