Further readings for the Sigma 105mm F2.8 EX DG OS HSM Canon
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Although you would be forgiven for thinking all the lenses in the Milvus range from Zeiss are new from the ground up, this is not the case. Several of the models use the optical designs from the now-renamed Classic range and have been re-shelled. The Milvus 2/100M is one of those. It has the same 9-element design and high-speed f/2.0 maximum aperture as its predecessor, but it adopts upgraded T* coatings and a modern-shaped, anodized outer barrel with matching hood, reminiscent of the Otus models.