Sigma 70-300mm F4-5.6 APO DG Macro
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Review of Sigma 70-300mm f/4-5.6 DG Macro APO
By: SLR Gear
The Sigma 70-300mm /4-5.6 is a viable alternative to manufacturers' versions of the same lens. If you're looking for excellent corner-to-corner sharpness across a wide range of focal lengths and apertures you won't find it in the Sigma, but when stopped down to /8 and /11 the lens performs decently well. It offers an excellent macro mode between 200mm and 300mm and some of the best...