It depends what's causing the fringing, but often it's due to the different wavelengths of light refracting differentlly through the lens. You can tell if this is the case because the effect will be more noticable in the corners of the image.
If this is the case, you could try applying a slight pin-cushion distortion on the green and blue channels to bring them back in line with the red ( or vice-versa ). Better still, use a proper lens distortion tool, such as the free one available with PTools (I think). Pete >On some of them colour fringing is apparent around areas where there is >light/dark detail. =============================================================== GO TO http://www.prodig.org for ~ GUIDELINES ~ un/SUBSCRIBING ~ ITEMS for SALE
