You can start here with PanoTools and a brief tutorial on using a subset
of PanoTools for barrel distortion correction.
<http://www.dpreview.com/learn/?/Image_Techniques/Barrel_Distortion_Correction_01.htm>
PanoTools is a freebie that provides the basic engine for panorama and
other image manipulation software.
Or you can use PTLens <http://epaperpress.com/ptlens/index.html> which
costs $15 but has a free trial version. Also does vignetting,
perspective and chromatic abberation. Used to be free. Operates from a
lens database. Service includes calibration assistance for your lens to
be added to the database if it's not there already. All Oly 4/3 lenses
are in the database already.
Waiting to see the corrected version...
Chuck Norcutt
John Hudson wrote:
>
> ----- Original Message -----
> From: "Chuck Norcutt" <chucknorcutt@xxxxxxxxxxx>
> To: <olympus@xxxxxxxxxx>
> Sent: Friday, 22 September, 2006 08:18 AM
> Subject: [OM] Re: Olympus 11-22mm / f2.8-3.5 digital zoom
>
>
>
>>All good stuff but I actually like your 14-45 shot best of all. But the
>>barrel distortion is very noticeable on the horizon. Should be easy to
>>fix though in post processing.
>
>
> Chuck: Please point me in the direction of PS version 6 and tell me how.
>
> John H
>
>
>
>
>>Chuck Norcutt
>>
>>John Hudson wrote:
>>
>>
>>>Taken outdoors with the 7-14
>>>http://www.johnhudsonphoto.com/453.html
>>>
>>>Taken indoors with the 7-14
>>>http://www.johnhudsonphoto.com/486.html
>>>http://www.johnhudsonphoto.com/487.html
>>>
>>>Taken with the 14-45 zoom
>>>http://www.johnhudsonphoto.com/504.html
>>>Notice the barrel distortion. This is one reason I am looking for a
>
> better
>
>>>option than the 14-45 zoom.
>>>The 11-22 looks to be the better choice.
>>
>>
>>
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>
>
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