The word "groundbreaking" seems inadequate for describing the awesomeness of the Sigma 18-35mm f/1.8 DC HSM Art Lens. The primary reason for that awesomeness is the not-seen-in-any-other-zoom-lens f/1.8 aperture.

I have no hesitation in joining the chorus of praises for this lens as far as pure optics and ground breaking parameters. If you want to replace 2-3 prime lenses and can adjust to the size and weight, this is lens can do the job, but for me, the limited range and lack of stabilization made it a...

Have only used the new lens for a few days. But I must say I am pleased with its capabilities. Really am liking the small focal settings to achieve bokeh effects on closeups. The ability to change from 18-35 mm is very convenient.

The best lens out of my collection. there are only two lenses I take out, 24 - 70mm F2.8 and now this Sigma 18-35mm F 1.8. This also works perfectly with my BMCC. Talk about sharpness. X) Very satisfied with this purchase.

This is a classy lens for APS sensor cameras in every way. Build quality is first rate with smooth zoom and focusing action. It is a perfect match for my Canon 70D (or a 7D) Image quality stopped down is razor sharp with virtually no distortion or vignetting.

Excellent build and image quality

One needs to use this lens with care due to the shallow depth of field

A review after using seven weeks.

I was very happy with the performance of this lens from day one. As almost all reviews available on the Internet say, this lens produces superb image quality.

There are a million in depth reviews of this lens on the various photography sites and every thing they say is true. If you shoot APS-C this is a very nice piece of glass at a really decent price considering the competition. After shooting on this for a month I've added this 50-100 to my wishlist.

Great Lens. Still quite sharp wide open. even better at 2.8. Solid build not too heavy. Has a72mm filter wish it was 77mm. Overall 5 stars

A product of perfection. Beats all the other lences in the range provided by NIKON or CANON.

After purchasing a Camera we need a good lens for our video and pictures and if you are a photographer then canon 70-200 better then 18-35 but if you want a budget lens then buy it. Sigma 18-35 With f/1.8 Aperture Make This Thing awesome. * 1.