GaryHart

Avoiding chromatic aberration starts with having the best quality glass—prime lenses are ideal, but the best zooms are good too. And rather than shooting wide open, stopping down to f/8 to f/11 helps too—I try not to stop down farther than f/11 unless I need to, because the smaller the aperture, the greater the diffraction (an entirely different problem).
In Lightroom Lens Corrections, I usually check the Remove Chromatic Aberration box, but rarely notice much difference. In Photoshop I'll magnify the high contrast edges 100% or more to check for CA—if I see it, I try to adjust it out with the Lens Correction filter. Others might have more elaborate solutions, but since switching to Sony I hardly ever think about CA—possibly because all my lenses are Sony GM or G, and I virtually never shoot wide open. I'll be curious to see what some of the other Artisans have to say about it.