Used 70-300 sigma lens.... whats the difference ?

Started Jul 5, 2012 | Discussions thread
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Uloo
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Used 70-300 sigma lens.... whats the difference ?
Jul 5, 2012

I'm looking at getting a used 70- 300 mm Sigma zoom lens.
I see there are 3 version the APO then the DL and DG.
In what order are they from good to less good ?
Thank you so much
Ulrich

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