Olympus EM-1 gets fast focus on adapted PDAF 4/3 lenses, why not Sony?

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tomtom50
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Olympus EM-1 gets fast focus on adapted PDAF 4/3 lenses, why not Sony?
6 months ago

The EM1 uses an adapter and on-sensor PDAF to get DSLR-fast focus out of PDAF 4/3 lenses using a pellicle-free Olympus adapter.

Why can't Sony manage the same with the LA-EA3?

And drop the pellicle in the LA-EA4 for focusing screw-drive lenses?

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