For initial sharpening, after conversion from DNG, I use the following -
Amout of sharpening 350%, Radius - 0.3, Threshold - 0 levels
Before printing - Amount of sharpening 350%, Radius 0.7, Threshold 3
levels. I adjust threshold downward to eliminate fringing.
HTH
Kenneth Waller
http://www.pentaxphotogallery.com/kennethwaller
----- Original Message -----
From: "Igor Roshchin" <s...@komkon.org>
Subject: Sharpening Radius?
I thought I would ask the gurus of digital processing here on PDML about
this first. When you sharpen images, how do you choose the "Radius"?
Yes, I read in the guides this:
"Radius: Controls the size of the edges you wish to enhance, where a
smaller radius enhances smaller-scale detail. You'll usually want a
radius setting that is comparable to the size of the smallest detail
within your image."
But how do you practically determine that, say in LR? You cannot tell
the difference if it is 0.9 or 1.1 pixels.
Also, several years ago, I remember seeing an advice somewhere (possibly
here), where a person used 0.9 or 0.8 value for that radius. But I never
understood why. Any idea?
Thanks,
Igor
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