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Forums > Back > Does the Tamron SP 10-24mm (for Sony) support contrast AF?
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[quote name='fotorrhoe' timestamp='1312967844' post='10570']

Contrast AF on the A580 does work with SSM or SAM lenses only. For 3rd party implementations of SSM (USD, HSM) I would check with the supplier first as there are confirmations for SIGMA HSM not to work with contrast AF.

Therefore, Tamron 10-24 does not enable contrast AF, Tamron 70-300 USD should, but I have no confirmation.

[/quote]



Well it's a relief to know that the reason why Contrast AF doesn't work in the Tamron SP 10-24 is because it doesn't support Contrast AF and not because I got a bad copy. As for the Tamron SP 70-300 USD, I have made up my mind that I will buy it whether it supports Contrast AF or not. It would be nice if you have a choice between using Contrast AF or phase - detect AF, but since the 70 - 300 's main use would be sports or birds in flight shooting, the faster phase - detect AF would probably be the preferred AF method for this lens. Thanks for the information..
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Does the Tamron SP 10-24mm (for Sony) support contrast AF? - by rommel - 08-11-2011, 07:27 AM

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