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Horrible AF Performance with Sigma 150 - 600 Sports and Sony a7r III

Started 1 month ago | Discussions thread
Tirpitz666 Contributing Member • Posts: 705
Re: Horrible AF Performance with Sigma 150 - 600 Sports and Sony a7r III

Hi, with the Sony 200-600 being so good for what it costs (especially used), I wouldn't bother with anything else, in particular if adapted.

I recall having the 150-600 C and never managed to focus with enough speed to make it usable for anything other that very slow moving targets.

If I were you, I'd try to sell the 150-600 and get a 200-600, it will be night and day in terms of AF and also the IQ at the longest end will be better (and still very good with a 1.4x TC).

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