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Message: <blockquote data-quote="J-see" data-source="post: 472048" data-attributes="member: 31330">I think it's quite the opposite. The next (currently released) generation are backside illuminated sensors which will perform better the smaller their sensor pixels. From what I read their best performance would be around 1 micron. The downside is that they'll become more diffraction limited the more that pixel size goes down which will demand lenses that go wider open if you want to have some options left.Besides that, for similar "action" lenses, f/2.8 will always outperform f/4 when it comes to focus speed. That matters a lot for specific types of photography.</blockquote>