AndreeOnline
Veteran
Bryan over at TheDigitalPicture has a preview of the Sigma 24-105 where he has been shooting charts for some clinical comparisons.
Sharpness wise, the Sigma is marginally better at 24mm and the Canon owns the Sigma with about the same amount at 105mm. The differences are small enough to not be a factor in real life shootings. I feel they are about same in contrast with a nod to the Canon.
While not a bad lens, in a direct comparison to the Canon 24-105mm there is very little between them. It won't go down as another head turner like recent 35mm 1.4 or the 18-35 1.8.
Now the race is on to be the first with a 24-70 2.8 IS with performance to match.
Sharpness wise, the Sigma is marginally better at 24mm and the Canon owns the Sigma with about the same amount at 105mm. The differences are small enough to not be a factor in real life shootings. I feel they are about same in contrast with a nod to the Canon.
While not a bad lens, in a direct comparison to the Canon 24-105mm there is very little between them. It won't go down as another head turner like recent 35mm 1.4 or the 18-35 1.8.
Now the race is on to be the first with a 24-70 2.8 IS with performance to match.