Lens distortion?

[Aperture Nine]

I can recommend PTLens. My lens distorts everything at least slightly and I just could not correct everything, too time consuming. After I bought PTLens (it is cheap!) I just trigger it from Photoshop and it corrects the image satisfactory because it knows my lens in seconds.

[PhotoNewt]

Originally Posted by chins

17-85mm is well known for its barrel distortions at wide agle and pincussion distortions.
I would try PTLens http://epaperpress.com/ptlens/ instead of photoshop to fix it. Its only 15$ software.

Reviews of this lens suggest that around 20-24mm distortions are at a minimum, you may want to limit the wide angle use to this length to get better out of camera images.

When ever I use the ES 17-40mm f/4L I limit my wide angle zooming to no more than 20mm to avoid this very problem. Most extreme wide angle zoom lenses will exhibit significant barrel distorsion at the limits of the low range.