DIGITAL SLR ESSENTIALS
Lens aberration corrections
Get the best from your Canon lenses with these digital fixes
One of the reasons that Canon’s EOS system is so popular is the vast range of lenses available. The ‘L’ series of optics offers premium optical quality, although there are plenty of lenses that give outstanding results despite not having a red ring around the barrel.
Yet there is a way to tap into even more quality from your lenses, regardless of their cost: aberration correction. This feature, available both in-camera and in Canon’s Digital Photo Professional software, enables you to fine-tune aspects of a lens’s performance and correct optical problems inherent in all lenses. Problems such as the softening of diffraction caused by small apertures, or the darkening in the corners of a picture. It can’t make a duff lens a stellar one, but it does allow you squeeze the last drop of performance from your collection of glass.
Lens corrections are software tweaks, which means, like white balance and noise reduction, their effects are only applied to JPEGs. If you shoot Raw, you’re able to
