IJG's reviews

Canon EF 35mm f/2

Hi Everyone
I wold like to ask You some questions. I am planing to buy such a lens and nowdays I try read about it as much as possible, and people often say this lens is fast. Some people say this lens is very fast. :) Others say it is quite slow. Not easy to decide what to think. I would be grateful if someone could say something more accurate for example how many second does it take to focus...
Now I am using a Sigma 17-70. I would be great if some of had some experience with this lens and would be able to compare. Which is faster? Which is noisier?
I did no think my objective to be noisy at all, and while reading a forum a recognized this one is also considered to be a loud stuff.
Thanks a lot!