On 14/11/06, Tim Øsleby <[EMAIL PROTECTED]> wrote: > Me too is puzzled by the fringe/CA. > Especially I'm amazed by the brick wall images. That's not a high contrast > motif. I can't see why there should be CA there. Is it because of a lemon > 16-45 sample, or are they in some kind of serious trouble? I know this is > just samples from a preproduction camera, but I can't help wondering...
CA should be independent of image contrast as it's a function of the lens. In essence CA occurs because the colours are split due to slightly differing magnification ratios across the colour spectrum. CA may exacerbate purple fringing (bloom) caused by high contrast and over-saturation of the sensor but they are essentially independent issues. -- Rob Studdert HURSTVILLE AUSTRALIA Tel +61-2-9554-4110 UTC(GMT) +10 Hours [EMAIL PROTECTED] http://home.swiftdsl.com.au/~distudio//publications/ Pentax user since 1986, PDMLer since 1998 -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
