I agree that the price is fantastic, but how many folks here are confident enough in terms of Sigma's AF speed and accuracy to purchase this pre-order? I ask this in all seriousness, I'm curious to see especially the responses of folks who own the newer Sigma lenses. I sold all of mine 3 years ago after not enjoying hit/miss rate very much.
my 70-200 f/2.8 OS has a good autofocus hit rate...i have to audjust a bit with mcrofus adj on 50D a +6...with the old 70-200 f/2.8 ii i had to psuh to a +15.
the speed is slower than canon, also because they dont provide a limiter, but i dont think thet af speed of 35mm will be much lower than canon equivalent.
i tought they provide software to adjust focus also on camera that doesnt have mfa... am i wrong? that's a very nice option; never seen on any lens from other manufacturers