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It looks like the next version of Dual Pixel AF is being developed according to the <a href="http://pdfaiw.uspto.gov/.aiw?PageNum=0&docid=20180047768">latest patent on the subject</a>.</p>
<p><strong><a href="https://www.canonnews.com/canon-patent-application-dual-pixel-sensor-improvements">Canon News</a> notes:</strong></p>
<blockquote><p>This patent goes heavily into the “methods of manufacturing” the improvement, detailing layer by layer how the image sensor is fabricated. There’s a good chance that this is one in which Canon is attempting to seriously do.</p></blockquote>
<p>It’s obvious Canon will continue to improve Dual Pixel AF in both manufacturing and performance.</p>
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