Digital BW, The Print

> >
> > What did you mean by?
> >
> > "For the edge between the dark tree and bright sky, using a singe

Sorry, typo -- should have been "single"

> > color channel from the shot that was 2 stops under exposed resulted 
> >in a very good edge."

The under-exposed (2 stops under the camera's overall setting) green channel
was the best -- and quite good.  There is still just a hint of the artifact.



> 
> Isn't this just chromatic aberration?

I don't think it was a lens aberration.  I'm more inclined to think it was a
type of blooming.  It did not seem to be related to the distance from the
center, and the areas were not that far from the center.  I usually see
color aberrations in lenses closer to the edge.  One reason I stayed with
the 24mm Canon, and not one of the zooms was the significantly lower color
fringing off axis with the 24.  (The Tokina 12-24 looks like it's worth
looking at -- if the rest of the system works out.)

Paul
www.PaulRoark.com