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What are the best procedures to eliminate Barrel Distortion (or Pincushion
distortion), Chromatic Aberration and Parallax?

"Rich Bail" <(E-Mail Removed)> wrote in message
news:HqoKb.39028$(E-Mail Removed) hlink.net...
> What are the best procedures to eliminate Barrel Distortion (or Pincushion
> distortion), Chromatic Aberration and Parallax?
>
Buying a proper lens would be the first one
Then there is a plugin (did I say plugin?) called LensDoc.
http://www.andromeda.com/info/lensdoc.html that takes care of most barrels
and pincushions.
It can also work out some parallax problems if not too acute.
Chromatic aberrations come in too many different variations.

Stephan

"Stephan" <(E-Mail Removed)> wrote in message
news:YTpKb.43143$(E-Mail Removed)...
>
> "Rich Bail" <(E-Mail Removed)> wrote in message
> news:HqoKb.39028$(E-Mail Removed) hlink.net...
> > What are the best procedures to eliminate Barrel Distortion (or
Pincushion
> > distortion), Chromatic Aberration and Parallax?

What do you mean by parallax? Traditionally, it refers to the fact the view
as seen through a non-TTL viewfinder is not the same as the image on film,
especially for close-ups, but there's not much you can do about that after
the fact.

> Buying a proper lens would be the first one

All lenses distort.

> Then there is a plugin (did I say plugin?) called LensDoc.
> http://www.andromeda.com/info/lensdoc.html that takes care of most barrels
> and pincushions.

Debarrelizer is much easier to use and cheaper:
http://www.theimagingfactory.com/

> Chromatic aberrations come in too many different variations.

Debarrelizer also helps with some common forms of chromatic aberration.
Other plug-ins can be found via Google.

In article <HqoKb.39028$(E-Mail Removed) k.net>,
(E-Mail Removed) says...
> What are the best procedures to eliminate Barrel Distortion (or Pincushion
> distortion), Chromatic Aberration and Parallax?
>
>
>
The free program panorama tools has plugins that will fix lens
distortions as well as alter perspective and point of view.
Do a google search to find a site currently hosting it.

--
Robert D Feinman
(E-Mail Removed)
Landscapes, Cityscapes, Panoramas and Photoshop Tips
http://robertdfeinman.com

"Stephan" <(E-Mail Removed)> wrote in message
news:YTpKb.43143$(E-Mail Removed)...
>
> "Rich Bail" <(E-Mail Removed)> wrote in message
> news:HqoKb.39028$(E-Mail Removed) hlink.net...
> > What are the best procedures to eliminate Barrel Distortion (or
Pincushion
> > distortion), Chromatic Aberration and Parallax?
> >
> Buying a proper lens would be the first one

That is what I was thinking ... correct at the source of the problem.



> Then there is a plugin (did I say plugin?) called LensDoc.
> http://www.andromeda.com/info/lensdoc.html that takes care of most barrels
> and pincushions.
> It can also work out some parallax problems if not too acute.
> Chromatic aberrations come in too many different variations.
>
> Stephan
>
>

"Warren Sarle" <(E-Mail Removed)> wrote in message
news:G%rKb.211419$(E-Mail Removed) .com...
> "Stephan" <(E-Mail Removed)> wrote in message
> news:YTpKb.43143$(E-Mail Removed)...
> >
> Debarrelizer also helps with some common forms of chromatic aberration.
> Other plug-ins can be found via Google.
>
How does Debarrelizer help with chromatic aberration??

Stephan

Yes, but some lenses distort much more than others.
"Warren Sarle" <(E-Mail Removed)> wrote in message
news:G%rKb.211419$(E-Mail Removed) .com...
> All lenses distort.

"Stephan" <(E-Mail Removed)> wrote in message
news:zNBKb.40440$(E-Mail Removed)...
>
> "Warren Sarle" <(E-Mail Removed)> wrote in message
> news:G%rKb.211419$(E-Mail Removed) .com...
> > "Stephan" <(E-Mail Removed)> wrote in message
> > news:YTpKb.43143$(E-Mail Removed)...
> > >
> > Debarrelizer also helps with some common forms of chromatic aberration.
> > Other plug-ins can be found via Google.
> >
> How does Debarrelizer help with chromatic aberration??

It can transform each channel separately.

Hi,

I recently wrote such a plugin, you'll find it at:

http://flofiltres.free.fr/UnDistort

It corrects pincushion/barrel distortions, lateral chromatic aberration and
perspective (I suppose that's what you're looking for). Unlike the free
Panorama Tools, it's a shareware.

Florian.


Rich Bail wrote:
>
> What are the best procedures to eliminate Barrel Distortion (or Pincushion
> distortion), Chromatic Aberration and Parallax?

Euh, that was an incorrect address. Here is the correct one:

http://flofilters.free.fr/UnDistort


Florian wrote:
>
> Hi,
>
> I recently wrote such a plugin, you'll find it at:
>
> http://flofiltres.free.fr/UnDistort
>
> It corrects pincushion/barrel distortions, lateral chromatic aberration and
> perspective (I suppose that's what you're looking for). Unlike the free
> Panorama Tools, it's a shareware.
>
> Florian.
>
> Rich Bail wrote:
> >
> > What are the best procedures to eliminate Barrel Distortion (or Pincushion
> > distortion), Chromatic Aberration and Parallax?