Is adding PDAF support purely based on software for lenses?

Started Dec 25, 2012 | Questions thread
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myDingling
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Is adding PDAF support purely based on software for lenses?
Dec 25, 2012

I'm in the market for a native emount lens after selling my 16-50 power zoom. I keep reading about people waiting on the sel50 and sel35 to get PDAF support and it made me wonder if other lenses like the sigma 30 might also be capable of receiving such updates. Is it all lens software/firmware based? Or is there something in the lens hardware that also needs to be updated?

im worried that if I buy a sel50 now, sony will release another version later capable of PDAF...

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