11-12-2010, 11:07 AM
I liked the lens for low-light applications, where the border sharpness is not overly important. But be aware of serious AF issues:
I used this lens in Nikon mount on a D40x. Only the second copy was focusing accurately. Then, when I got my D90 it had focusing issues on this camera. I sold it and ended up with a Nikon lens.
If you get a copy that has no AF issues with one camera you cannot assume that it works on another camera. Sigma is known to correct focus issues for free under warranty. But for this they need body+lens, thus they calibrate it only for this very body.
I used this lens in Nikon mount on a D40x. Only the second copy was focusing accurately. Then, when I got my D90 it had focusing issues on this camera. I sold it and ended up with a Nikon lens.
If you get a copy that has no AF issues with one camera you cannot assume that it works on another camera. Sigma is known to correct focus issues for free under warranty. But for this they need body+lens, thus they calibrate it only for this very body.