Reviews and Problems with Sigma 105mm F2.8 EX DG OS HSM Macro
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26 October 2011
Conclusion: Focus is confirmed well and without hesitation, while the distance window displays both distance and magnification clearly. On such a long lens the manual focusing ring is quite a fair distance away from the camera body, which makes using it while supporting the camera a little tricky.
Pros: Excellent functionality, Impressive performance, Image stabilisation system, Good magnification