On 9/16/2011 12:54 PM, Chuck Norcutt wrote:
> So what do you believe is the problem in the process
I don't doubt that there are other possible culprits, but those I know, too
well, are Unsharp mask and Shadow/Highlight.
Web preparation tools that downsample, sharpen and heaven knows what else could
be culprits. I imagine that Lightroom,
Aperture and such create them with overuse of some sliders.
I see them in a lot of web images.
A way to avoid them along dark foreground/bright sky edges and horizons is to
copy the current layer after any lens
corrections, NR, etc. Select the sky or other bright background with some
care, to create a mask. If working with a B&W
conversion, I would first create the mask using the color version, as blue sky
may be more easily and better selected
than just bright vs dark. (If you don't know how to copy a mask from one layer
to another it's time to learn.)
Then whack away to your heart's content on layers below the sky mask. All the
borders, halos and other artifacts thrown
up along the edges are simply covered. You may also edit the sky layer, but be
careful of LCE and SHi.
With complex edges, trees and such, the masking will never be quite perfect.
You'll need to use the Paintbrush tool on
the mask edges to fine tune it and possibly dodge/burn.
Dark borders, like that on the central rock in Bob's image are much less
obvious, but certainly do occur.
> and how did you turn the halos off? (I hope not tediously turning off pixels)
Yup, Clone Tool. I don't know how else to do it after the fact.
Cloning Moose
--
_________________________________________________________________
Options: http://lists.thomasclausen.net/mailman/listinfo/olympus
Archives: http://lists.thomasclausen.net/mailman/private/olympus/
Themed Olympus Photo Exhibition: http://www.tope.nl/
|