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Old Jan 30, 2005, 9:37 PM   #1
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Here's a tutorial on how to correct barrel distortion (and pin cusion) in Photoshop. http://www.dpreview.com/learn/?/Imag...rection_01.htm
using a free software tool, that can also stitch panoramas.
I also posted this link to this thread:http://www.stevesforums.com/forums/v...63&forum_id=23

There is an example of barrel distortion a few pictures down. All cameras do this to some degree (pana's not to bad, actually...). Usually invisible but shows up on architectural shots with straight verticals.

Here's the on-line user's guide. http://ptfaq.org/fom-serve/cache/1.html

The program can be downloaded from the DPreview link.
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Old Jan 31, 2005, 2:27 AM   #2
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Hey Nick...is this a plugin that also works with photoshop CS. If it doesn't does CS have something to help with this? Thanks for any answers

seth
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Old Feb 1, 2005, 6:42 PM   #3
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It works well...



here is barrel dist. correction example...

FZ1 wide angle... self timer auto everything.

original.

better install and usage should be with the PanoTools.
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Old Feb 1, 2005, 6:43 PM   #4
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It works well...



here is barrel dist. correction example...

FZ1 wide angle... self timer auto everything.

original.

better install and usage should be with the PanoTools.

oops double post
image removed
dialup is too slow

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Old Feb 1, 2005, 6:48 PM   #5
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corrected image.
b value -0.015
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Old Feb 1, 2005, 6:56 PM   #6
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Ok this link works now
PanaTools web site.

http://ptfaq.org/fom-serve/cache/1.html

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Old Feb 1, 2005, 7:08 PM   #7
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boyzo wrote:
Quote:
here is barrel dist.
Hey M8T, the distorted one isn't showing up on my screen. Kinda makes me wonder why the processing engine doesn't correct this itself in post. In any case, if you get a WA adapter, don't worry too much about BD. Easy fix. I'm awaiting the arrival of my Raynox DCR-6600, which has limited BD but softer edges. I wonder now if I shouldn't have gotten one with BD but sharp edges once corrected.

Personally, I would have traded a few ticks on the zoom end for a few less mm's on the wide side.

Glad you like it!

N

PS --------> Folks have to start realizing you can correct anything in post. The camera is just a means to capture the image, and one should look for one that can "get the shot" (hence the FZ's) in the first place, and not place so much emphasis on what the image looks like out of the camera, like reviewers like Steve and others do. Those kind of reviews are for film cameras where you're stuck with whatever comes back from the lab. It's not the case anymore. Digicam reviewers, are you listening?
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Old Feb 1, 2005, 7:25 PM   #8
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NickTrop wrote:
Quote:
boyzo wrote:
Quote:
here is barrel dist.
Hey M8T, the distorted one isn't showing up on my screen. Kinda makes me wonder why the processing engine doesn't correct this itself in post. In any case, if you get a WA adapter, don't worry too much about BD. Easy fix. I'm awaiting the arrival of my Raynox DCR-6600, which has limited BD but softer edges. I wonder now if I shouldn't have gotten one with BD but sharp edges once corrected.

Personally, I would have traded a few ticks on the zoom end for a few less mm's on the wide side.

Glad you like it!

N

PS --------> Folks have to start realizing you can correct anything in post. The camera is just a means to capture the image, and one should look for one that can "get the shot" (hence the FZ's) in the first place, and not place so much emphasis on what the image looks like out of the camera, like reviewers like Steve and others do. Those kind of reviews are for film cameras where you're stuck with whatever comes back from the lab. It's not the case anymore. Digicam reviewers, are you listening?
Yep the engine could fix barrel distorion. it fixes CA venus2

Yes good points re re-viewers film camera's etc.

fixed that 1st image post try again was to large I think...



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Old Feb 1, 2005, 7:34 PM   #9
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Boyzo, this is a test for the barrel distortion of a camera lens if ever there was one! :G Great shot by the way, and great choice of shot to test the software.
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Old Feb 1, 2005, 7:50 PM   #10
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NickTrop wrote:
Quote:
Boyzo, this is a test for the barrel distortion of a camera lens if ever there was one! :G Great shot by the way, and great choice of shot to test the software.
f2.8 1/15 ISO300

FZ1 propped on an antique box timer on.
AUTO everything.

I just pushed buttons...

I did do a preview tho' to set it up.

jumped into the scene.



great camera the FZ1.

btw way the inherent barrel dist is not bad seen worse
Nikon Coolpix for example...
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