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Questions about the Tamron 150-600 and Sony e-mount cameras
Nov 19, 2017 00:03:13   #
wmurnahan Loc: Bloomington IN
 
I know I can use either the ea3 or ea4 adapter to mount this a mount lens to my e mount camera, my question is, is there an auto focus advantage (since it has the mirror) to using the ea4, or any other advantage to using this more expensive adapter? Does the Tamron use anything (data, etc) other than power from the camera for the auto focus?

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Nov 20, 2017 22:29:54   #
jimdandy
 
Don’t think the EA3 will autofocus.

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Nov 20, 2017 22:47:20   #
wmurnahan Loc: Bloomington IN
 
jimdandy wrote:
Don’t think the EA3 will autofocus.


It is auto focusing with the EA3, it came with it from E-bay, I already have the EA4. From what I can tell, the EA3 can't auto focus a lens that needs power from the camera for auto focus, no screw drive.

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