Review: "This large aperture 30mm f/1.4 EX DC HSM lens is designed to match the APS-C size image sensors of digital SLR cameras. Two SLD glass elements are especially effective in the compensation of magnification chromatic aberration.
"Optically, the Sigma 30mm f/1.4 EX DC HSM performs quite well, albeit not quite up to the level we'd been expecting. That said though, it does deliver very good performance and build quality at a very affordable price: No other lens currently on the market really delivers the bang for the buck that this one does at its price point.
All in all, Sigma seems to have done exactly what they set out to do with this lens, namely provide a fast, high-quality "normal" lens for DSLRs with APS-C sized sensors. It's well built, delivers good results optically, and is a (reasonably) affordable lens to own."
