Overall, not a bad thing can be said about Sigma‘s 35mm f1.4 EX. The company surely put a lot of time and effort into the design and it‘s worth every penny. The lens is sharp as a razor, a relative speed-demon when it comes to focusing, and has some beautiful image quality. It may even stay mated to your camera!
If we really had to nitpick, we could talk about the lack of weather sealing; but then the $899.00 price point gets factored in. And that understandably keeps the price down.
Personally, this is currently my favorite lens–I‘m old school and was trained to shoot with all primes. If I were stuck on a desert island with only one lens and my camera, this would be it. Sigma‘s 35mm f1.4 EX wins my fullest recommendations with no contest.