How can A6000 beat PDAF, doenst make sense?

Started Feb 12, 2014 | Questions thread
parallaxproblem Veteran Member • Posts: 5,335
Re: How can A6000 beat PDAF, doenst make sense?

dpyy wrote:

How can A6000 beat PDAF? Can someone explain the technology behind this? It doesn't matter how many points of autofocus they put on the sensor it should still be significantly slower than dedicated sensors?

It seems to come down to processing speed...  now the processors are (according to Sony) fast enough to perform the necessary calculations in realtime

Being based on-sensor there are potentially many benefits to this approach, not least that the distance being measured will be exactly the right one!  With a DSLR-type dedicated PDAF sensors in different location arrangement, any difference in light path between lens-to-sensor and lens-to-PDAF will be cause focus inaccuracies!

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