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?
Don’t think the EA3 will autofocus.
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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