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-   -   PTLens profile for Sigma 18-50 2.8 (https://forums.steves-digicams.com/nikon-lenses-62/ptlens-profile-sigma-18-50-2-8-a-53603/)

Ocelot Apr 25, 2005 1:22 PM

Hi,

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:

http://epaperpress.com/ptlens/

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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