Understanding Colour Fringing
Ever wondered why some of your digital photographs have coloured fringes along the edges of your subject? PhotoReview.com.au explains that this is caused by one of two things; chromatic aberrations and blooming, and suggests a couple of software packages that will remove the unwanted effects (found via Digicamera.net).
“If the picture was captured on film, deciding what caused the coloured fringing is easy: only chromatic aberration can be blamed. It’s more difficult if the shot was taken with a digital camera because both blooming and chromatic aberration can create coloured fringes. Teasing out which one is relatively easy once you understand how the fringes are produced.”