The Sigma 135mm F1.8 DG HSM is a fast moderate telephoto prime lens for full-frame DSLR cameras. The 135mm f/1.8 features 13 optical elements in 10 groups and a HSM focusing system which provides quiet, smooth and fast autofocus with full-time manual focus override. Retailing for £1,399 / $1,648, read our expert Sigma 135mm F1.8 DG HSM review to find out if it’s the ultimate 135mm lens…
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