Deke’s Techniques #14: Fixing chromatic aberrations in Photoshop

Published by | Tuesday, April 5th, 2011

This week’s technique from Deke is about using Photoshop to fix a common problem that occurs in photographs: transverse chromatic aberration, otherwise known by its far less daunting name, color fringing. This phenomenon— caused by light breaking up into its primary components— leaves outlines of aberrant color around the edges in your photograph. Have no fear, however, because despite its daunting name, transverse CA is easily fixed in Photoshop. In this week’s free movie from Deke’s Techniques, Deke not only illustrates how the phenomenon occurs, but also shows you how to fix it, armed with the Lens Correction filter and a modicum of analytical ability (or simple trial-and-error).

Check out the before and after results on this photo of Venice’s Rialto Bridge, and notice how the stripes of color around the statue and windows have disappeared in the image on the right.

For members of the library, this week’s exclusive members-only movie will show you a second approach for removing transverse chromatic aberration with Adobe Camera Raw. Either way, it’s a quick technique that will help you make quick work of this common problem.

Join us each week for another free technique from Deke!

Related links:
Deke’s Techniques
courses on Photoshop in the Online Training Library®
courses by Deke McClelland in the Online Training Library®


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4 Responses to “Deke’s Techniques #14: Fixing chromatic aberrations in Photoshop”

  1. Julie says:

    Just want you to know your video rocks. So many out there are beyond first rate and confusing or explain things half way. Love the job you do. Keep up the quality work!

  2. Cristen says:

    Thank you for this video! It helped me correct some green aberrations in some dead trees. Saved my photo. Thank you!!!

  3. tob says:

    I just want to mention that aperture DOES affect CA’s. That’s because light goes through the lens at higher angle when using wide apertures than with stopped down apertures. The higher angle the more light splitts apart (what was mentioned in the video). It is also possible that distortion (effect which does occur with every single lens when using small apertures) may cause more CA’s. That’s the reason why usually a lens has a sweet spot for lowest aberrations and usually using widest aperture will cause largest fringing.
    Best Regards, Tob

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