Most of the purple fringing I see is a sensor effect, not lens
related, on high contrast boundaries where one side of the boundary
is at saturation and the other is underexposed.
Godfrey
On Sep 21, 2005, at 4:33 AM, Paul Stenquist wrote:
Hi Shel,
Sometimes it's a result of red and blue chromatic aberration. If
so, you can correct it reasonably well by going to the "lens" tab
in the RAW converter and adjusting the CA sliders. At other times
it seems to be the result of backlight on dark objects, such as
branches against a sky and doesn't seem to be affected much by CA
adustment. I find this effect is more common to some lenses than
others. In situations where it was important to remove the fringe
and CA adjustment yields little improvement, I've occasionally
resorted to cloning it out after masking or selecting the
appropriate area. Lots of work, but it can be done effectively.
Paul
On Sep 21, 2005, at 6:48 AM, Shel Belinkoff wrote:
Any suggestions on how to rid an image of purple fringing ...
Shel
