Chromatic aberration

posted on 4th of april, 2011

Chromatic aberration appears in photos as "fringes" of color along boundaries that separate dark and bright parts of the image and can be most annoying.

Even with Canon L glass and a reasonably high end camera, I'm still faced with it in certain situations - with trees against pale skies, for example, or the edges of a building against a white sky, or blue sky with clouds.

There are times when even my software (Photoshop CS5) can't completely eradicate it, so I've figured out a fix which works nicely to address this.

With your image open in PS, select the Lasso tool and draw a selection around the offending area. Then, go to the Hue/Saturation adjustments panel, and instead of Master, click on the drop down arrow and choose Cyans...then pull the saturation slider to the left until your cyan fringe disappears. Repeat with the Magentas too and this should deal with the problem.

I've also used this method for purple fringing but be aware it won't work well if you have blue sky in your image, as pulling the Blues or Cyans sliders will also affect the color of the sky.

Comments (12)

Posted by Mjskehan on April 07, 2011
Thanks for that Tamara. :)
Posted by smartview27 on April 06, 2011
Thanks for your tip!
Posted by Tamarabauer on April 06, 2011
@ Aneese - sorry, yes, I should have mentioned I work with adjustment layers.
@ Melissa - yes, I think you'll find you need to remove any elements on tombstones to avoid rejections. I've got some tombstone images and I just cloned out the information on them. It was a bit time consuming though ;o)
Posted by Aneese on April 05, 2011
Nice tip. You can do the same thing in layers and use a layer to paint in or out the areas that need to be changed. The advantage of this is that it is non distructive to the original picture and one can always go back to the original image
Posted by Mjskehan on April 05, 2011
Hi Tamara- I like how creative your photos are. I see you have done a religious collection. I am beginning to do a series of grave/church photos myself and you may be able to answer my question. On some of the headstone shots I have the names showing, do you know if this is allowable? Or should I try to hide the names? Please let me know what you think? Cheers from Melissa, NZ
Posted by Tamarabauer on April 04, 2011
It depends on the image, Adeliepenguin...I might try a radius of 2 or so but it might mean you have to experiment a bit. I'm quite certain I've had images where my selections aren't feathered at all, but it depends on what other elements are in the image.
Posted by Adeliepenguin on April 04, 2011
Thanks for sharing!
I am curious, do you feather the edges of the selection so they blend into the rest of the image?
Posted by Cammeraydave on April 04, 2011
Good tip, Thanks.
Posted by Laurasinelle on April 04, 2011
Great photo!
Posted by FabioConcetta on April 04, 2011
Beauty image!
Posted by lzf on April 04, 2011
nice pic
Posted by Sobek85 on April 04, 2011
Great tip thanks

Comments (12)

This article has been read 1854 times.
Photo credits: Tamara Bauer.

About me

I am one of the remote photo editors for Dreamstime. My work background is a mixed bag - I trained as a primary school teacher, have had office/retail experience and for the last few years have settled into photography and image reviewing for Dreamstime.

South Gippsland, AU

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