Chromatic Aberration and Purple Fringing (CA & PF) – Photoshop tutorial
Friday, September 11th, 2009Chromatic Aberration and Purple Fringing are a common problem in cameras with anything but high class lenses. It is very common on fixed lens cameras of all kinds as well. Some will get rid of it on the JPEGs for you with in camera software but if you shoot RAW then this doesn’t help you. CA and PF are both fairly ugly and take something away from an image as it gives adds unnatural coloured outlines. However you don’t need to worry because they can be fairly easily removed using Photoshop.
So what is Chromatic Aberration and Purple Fringing?
These 2 phenomenons are basically the same. Chromatic Aberrations are the colour lines you get on the edge of high contrasting parts of an image. Purple fringing is the same except its purple.
How can you remove it? Well, with Photoshop of course.
Removing chromatic aberration in Photoshop CS
If you have the full version of Photoshop you can take care of small chromatic aberration problems with a handy built in tool.

Go Filter > Distort > Lens Correction. This will open op a new window with several tools at your disposal. Elements does have a version of this but it doesn’t contain the CA correction sliders.
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