10-21-2013, 10:38 AM
I have not tried either, but both should work better than the old Sigma. And I use Canon, so if I had used either I still can't say much about the lens + camera AF performance.
The best thing you can do, if you have a camera store which carries Sony DSLRs, to see if you can try each lens in store to see how responsive they are on your camera body.
The best thing you can do, if you have a camera store which carries Sony DSLRs, to see if you can try each lens in store to see how responsive they are on your camera body.