This lens has opened some doors for me with its f1.4 capabilities. I was trying to decide between this and the two more affordable canon 50mm lenses. Ultimately I sold myself on this output quality from this lens.

Low Light; Nice Bokeh; Rugged; Sharpness; Strong Construction

Inconsistent focus

Yes, I would recommend this to a friend

Fast / accurate auto-focus; Nice Bokeh; Rugged; Strong Construction

Tight manual focus right

I bought this lens mainly for portrait photography. I like it better than the canon version. I checked the reviews and photo samples of this lens and I must say, it's true enough that it is a nice lens.

Amazing lens! I absolutely love it - everything from build quality, Bokeh, image quality, this lens absolutely shines!

I was weary to buy this lens due to many review of the autofocusing not behaving. I bought 2 copies to hope that one would work with my camera. I noticed within the two copies that one was softer than the other. The autofocus is also not super at low light situations.

The 'EX' in the name denotes this lens's superior optical and build quality, the 'DG' means that it's optimised for the smaller sensor areas of most DSLRs but will still work on a full-frame camera, and the 'HSM' stands for 'Hyper-Sonic Motor', Sigma's proprietary high-speed autofocus technology.

I was scared after reading reviews that it has some back focus problem... but it was fine! Plus, if there's any problem, you can always return and get a new one.

Consistent Output; Durable; Easily Interchangeable; Nice Bokeh; Rugged; Strong Construction

Heavy

Every camera film or digital has set a benchmark. The images are truly world class and delivers excellent contrast and sharpness even in low light conditions.

Required factory focus recalibration. Still slightly front focusing, most noticeable wide open when there's little DOF. Re calibration process was painless. I paid to ship lens and camera body to sigma in Long Island NY, and they took it from there. Got it back in a few working days.

Image Quality Bokeh Fast; Nice Bokeh; Strong Construction

Blurry Focus

Back when we originally tested the Sigma 35mm f/1.4 DG AF lens , the first in Sigma's new high-end Art series to be released, we weren't just impressed, we were eager to see what would come next.