I looove this lens. Every shot is amazing buuuuuuuuut the lens cap is literally a piece of shit that falls off with little to no effort. Be CAREFUL putting it in a bag or case cause 100% the lens cap will undo itself and just fall off. With that said it's worth the money.

My biggest disappointment is very inconsistent AF performance - same picture taken twice from the same position - one is in perfect focus, second is completely soft. Huge vignetting at f/1.4. My first and last attempt buying third party lens. Nothing compare to Canon 50 f/1.2.

nice looking

very inconsistent AF performance

a good 50mm for canon

Performance & handling Prime lenses are about as simple as can be in terms of handling. You have just two controls – the focus ring and (depending on your lens mount) the AF/MF switch.

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 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.

Yes, I would recommend this to a friend

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

Tight manual focus right

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

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