Blur Shadow
Senior Member
The Sigma won't be able to beat the Canon in terms of AF speed and noise.
Have you tried the new Sigma lens? Because I don't think that is a fair statement to make if you haven't tested the Sigma.
Even if it is slower, I won't think it would be significantly slower.
Besides, Sigma has beaten Canon at least once, when it comes to the AF speed - The Sigma AF 85mm f/1.4