Conclusion

The Sigma 24mm F1.4 DG HSM is another very fast, tack-sharp prime lens in Sigma's excellentt Art series. It exhibits low chromatic aberrations and very little barrel distortion while being able to focus as closeas 25cm. Vignetting at wide-open apertures is the only real optical issue of note, being very apparent when shooting wide-open, but stopping down to f/4 solves the problem altogether.

Build quality is also excellent, with the brass lens mount and sober all-black design adding to the high-quality feel, and Sigma have even generously included a very good lens hood and padded case. Focusing was pretty quick on the Canon EOS 5D Mark III that we tested the lens with, although not as quick as the 35mm and 5omm Art lenses, and manual focus over-ride at any time is a great feature.

Perhaps most importantly, the price of the Sigma 24mm F1.4 DG HSM is very attractive, significantly undercutting rival lenses from Canon and Nikon. The only concession that it makes is the lack of any weather-sealing, something that the Canon and Nikon alternatives both offer. This is a relatively small concern for most photographers, though, so we can strongly recommend the new Sigma 24mm F1.4 DG HSM as a fast, well-built wide-angle prime lens that delivers excellent results at a price that won't break the bank. Highly Recommended!

Ratings (out of 5)
Design	4.5
Features	4
Ease-of-use	4
Image quality	4.5
Value for money	5