NPhoto

Fix colour fringing

Mike Harris reveals a couple of simple editing tricks to rid your photograph­s of chromatic aberration in Adobe CC

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Remove chromatic aberration in Adobe CC

Chromatic aberration (also known as colour fringing) occurs when different wavelength­s of light are refracted at different angles as they pass through a lens element. This prevents the wavelength­s from arriving at the same focal plane as the camera’s sensor, and since different wavelength­s represent different colours, this results in the lurid fringes we’d all rather avoid.

This effect is amplified at both wider apertures and the longest or widest focal lengths of a zoom lens. Lens manufactur­ers work hard to avoid chromatic aberration and other distortion­s by using various mixes of lens elements and specialist lens elements, such as Nikon’s Super ED and Short-wavelength Refractive glass. But all lenses are susceptibl­e to at least some chromatic aberration.

You’re most likely to encounter noticeable colour fringing when shooting in high-contrast lighting conditions, but that’s not to suggest you should avoid these situations. Editing software has made chromatic aberration easy to remove in post-production and in this article we’ll show you a couple of easy ways to combat chromatic aberration in Adobe CC.

You can remove chromatic aberration using Photoshop’s Lens Correction filter, but the quickest way to banish fringing is to check the Remove Chromatic Aberration checkbox in either Camera Raw or Lightroom’s Lens Correction panels. Photoshop comes into its own if you want to selectivel­y edit your shot or remove stubborn examples of colour fringing via a non-destructiv­e method using layer masks.

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