Sigma lenses on Olympus 4/3
I've seen plenty of evidence on the quality of the Bigma here on this forum but:
Anyone using Sigma EX DG APO HSM Macro IF II 70-200mm F/2.8? How good is it really?
What about Sigma EX DG HSM Aspherical 50 mm F/1.4 Lens? 30mm 1.4? Other Sigmas? Which ones to avoid?
I've been seeing some of these for sale and the prices don't look too bad...
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