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Ocelot Apr 25, 2005 1:22 PM


I'm looking for a PTLens profile that I can download for the Sigma 18-50 2.8. There's a profile for this lens under the Canon SLR list but not Nikon's. Is there a formula I can use to convert that to the 1.5x factor of Nikon's?

BTW, if you haven't tried it yet, check out PTLens at:

It's the best program I know of to correct barrel/pincushion distortion and vignetting. It's fast and best of all it's free!

Ocelot May 4, 2005 5:00 PM

FYI, the profile on PTLens's site now has the 18-50 for Nikon. :)

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