On 9/16/2011 2:06 PM, Ken Norton wrote:
>> Hum. Could be. I went back to the original .psd file. The white halo is
>> there at 600 percent, but much reduced in brightness, and no visible at 100
>> percent (unless you've got Moosevision).<g> I'm not sure it's not a natural
>> effect of the digital process, as in putting stuff on a computer, not
>> digital capture. The light in that shot was just on the cusp of the sweet
>> light, but still very strong and harsh. On the web version, which used
>> output sharpening for the web, the white halo over the dark areas and dark
>> over the light areas is much more pronounced.
>
> Bob, it still may be possible that it is an artifact of the RAW
> conversion.
Certainly seems possible. I've not run across that, that I've noticed, but that
doesn't meant it wouldn't happen with
different combinations of RAW file and converter. Especially when the converter
is also being used as a processor.
> We get color shifts, halos and other oddities where two
> colors come together at a hard edge. A red flower against a green
> background is sure to elicit rimming of some form.
You might want to consider another verb to use here. Unless you refer to
cleaning the silver noses with your tongue.
> Sometimes it turns
> gray. Lower pixel-count cameras have this much more common. The E-1 is
> especially susceptable to it. Seeing the halo at 600% leads me to
> believe it's an artifact of Bayer.
If it started as such, subsequent processing certainly 'enhanced' it. ;-)
Moose
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