On 22 Feb 2005 at 6:50, Jens Bladt wrote: > Some lenses are more prone to Chromatic Aberration (purple fringes) than > others, especially with a digital sensor. I guess wideangles more than > others. But I'm not shure. A lens designed for film will not always work > well with a digie.
What you describe above are two independent problems. The purple or green along very high contrast borders is known as "bloom". Its primarily a function of the camera sensor response to severe contrast junctions and it is often difficult remedy as it is generally fully saturated in one or two colour channels. CA is a function of the lens and can generally be minimized to the point that it's no longer visible using RAW tools such as PS CS RAW or in a RGB image format using PanoTools or similar with generally reasonable results. Rob Studdert HURSTVILLE AUSTRALIA Tel +61-2-9554-4110 UTC(GMT) +10 Hours [EMAIL PROTECTED] http://members.ozemail.com.au/~distudio/publications/ Pentax user since 1986, PDMLer since 1998
