![]() The lens feels more solidly built, particularly the hood. It also comes with the much improved outer coating that doesn’t peel off like the one on the original lens and a HSM (hypersonic) motor that should improve AF speed and perhaps accuracy.Īfter putting the lens on a camera the build difference is immediately apparent. So the new lens gives us a new optical formula, an extra aperture blade, and closer minimum focusing distance to go along with a higher, although still reasonable, price tag. The new 30mm DC HSM (left) and the original 30mm EX DC (right). But before we get to the optics, lets take a look at the two versions. ![]() The original wasn’t a bad lens at all, but the recent Sigma 35mm f/1.4 lens had most of us anticipating something impressive with the new 30mm, too. It might even be dramatically better than the original version optically. Sigma’s new version of the 30mm APS-C only lens, would, we hoped, eliminate those negatives. There was, perhaps, a bit more copy-to-copy variation than many of us found acceptable. Unfortunately, it had the somewhat dubious combination of being rather inaccurate to autofocus, yet extremely difficult to manually focus because of its inaccurate MF ring. The original 30mm was small, sharp, and inexpensive a perfect combination for those shooting a crop sensor camera. For those who haven’t had the pleasure used the original Sigma 30mm f/1.4 lens, it was something of a love-hate relationship. Since we got a nice bunch of the A1 version lenses in yesterday, we thought it would be worthwhile to do a bit of comparison with the older version. I do want to thank them for not calling it the 30mm f/1.4 X, though. The original version is officially the Sigma 30mm f/1.4 EX DC HSM, while the new one is the Sigma 30mm f/1.4 DC HSM A1. There is a bit of confusion regarding the names of the old versus new version of Sigma’s 30mm DX (crop sensor) lens.
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