Sigma is at last producing an increasing selection of its enormous lens range in the Four Thirds mount. Sigma's 105mm f/2.8 EX DG macro lens is a very handy optic, serving both as a 1:1 capable macro and fast medium telephoto prime lens. We've been using one for the last couple of months. Find out what we think of this lens and download some image samples produced by it.
Sigma 105mm f/2.8 EX DG macro lens review
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