1. A method for correcting a channel dependent color aberration in a digital image, where the digital image comprises a plurality of color channels, said method comprising the steps of: capturing an image comprising a plurality of color channels, wherein one of the color channels is a blurred color channel due to a channel dependent color aberration affecting that channel; using another color channel, other than the blurred color channel, as an indication of an aim sharpness; and adjusting the sharpness of the blurred color channel, at least partially, toward the aim sharpness; wherein the aim sharpness is a modulation transfer function (MTF) of the other color channel.