RAW photos are fish eyed - General Discussion and Assistance - CHDK Forum
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RAW photos are fish eyed

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Offline jam3s121

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RAW photos are fish eyed
« on: 19 / January / 2014, 20:53:41 »
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I understand this is normal.. but I had no clue this was normal til today.. I was taking photos in raw for over a week on my canon powershot sx260hs with absolutely NO fish eye.. then all of sudden today I take about 100 shot and all the .dngs are fish eyed.

Does anyone know how to fix this easily? I went into lightroom and applied lens correction for a for 230hs because my camera lens was not listed (cannon 260hs)

what do you think is this okay? i think raw shoots a wider shot
http://imgur.com/a/Ly1wi
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Offline reyalp

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Re: RAW photos are fish eyed
« Reply #1 on: 19 / January / 2014, 21:12:11 »
Quote from: jam3s121 on 19 / January / 2014, 20:53:41
I understand this is normal.. but I had no clue this was normal til today.. I was taking photos in raw for over a week on my canon powershot sx260hs with absolutely NO fish eye.. then all of sudden today I take about 100 shot and all the .dngs are fish eyed.
The the distortion will be different depending on the zoom setting. For
Quote
Does anyone know how to fix this easily? I went into lightroom and applied lens correction for a for 230hs because my camera lens was not listed (cannon 260hs)

You should be able to use http://www.adobe.com/support/downloads/detail.jsp?ftpID=5490 to create a lens profile for your camera. A manual is linked form that page.

Since the camera corrects jpegs in software, a quick way to check if you correction is reasonable is to is to compare with a camera jpeg. Loading a converted dng and a camera jpeg as layers in something like gimp or photoshop is a good way to do this.
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Offline msl

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Re: RAW photos are fish eyed
« Reply #2 on: 20 / January / 2014, 03:58:46 »
For the sx260 is a lens profile already available: http://chdk.setepontos.com/index.php?topic=9268.0


Btw., the linked topic could be pinned.  ;)

msl
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