Ridiculously TACK SHARP wideopen!!! and absolutely beautiful bokeh.
Today I decided to roll the dice and buy one. With my XTI I am having No front or back focussing issues regardless of being near or far from my subject. Did the angled "focus test" with a paper (text) and it focused in the area I focused on. Took pics of AA batteries with a triangular configuration trying to find a flaw. No issues whatsoever!!!
I debated on limiting myself to a "crop" dedicated lens vs buying a 35L. I saved aprox $920 if I bought a 35L + tax. My reasoning for going Siggie was that if I go full frame one day I'll simply use a 50mm 1.4 or go 1.2 since It'll be very similar to the 30mm on a crop body.
If the 35L is significantly better than the IQ I'd be suprised!! I'd say its still well worth the "L" since its good for both crop and FF bodies. When people rave about the IQ of the Sigma I've always doubted it. I'm a believer even after owning this lens for 2.5hrs.
The Canadian warranty is 10yrs for the EX lens. Piece of mind but really probably not necessary..... guess I'll never know or I'll find out.
If you dare to roll the dice this piece of glass will be a wonderful addition to your gear list.
I've taken many shots in the last hour and I'm getting wonderful "pop"
Heres a shot of the box wide open af f1.4 and then a cropped pic. Simply cropped and resized for web.