I know that sharpneing post conversion is conventional wisdom. But I've tried 
both ways with some images. In certain cases I've found that sharpening in the 
RAW converter yields a final image with better apparent sharpness and no 
artifacts than does applying USM after conversion. In other case, I've found 
that USM is superior. I frequently try both and make a decision after 
comparison. Sometimes, if I've sharpened a large file for printing, I'll add a 
bit more USM after downsizing for the web. However, in all cases, high 
magnification and careful examination of the final results are called for. 


> On Jun 27, 2005, at 9:47 AM, william sawyer wrote:
> 
> > As to the artifacts, I'm very interested in seeing how this plays  
> > out.  I've
> > noticed that images that look OK in one viewing program, may look  
> > like a
> > snow storm in other program, due to sharpening junk.  I sharpened  
> > this in
> > the RAW converter to about 60%.  I sharpened again in processing,  
> > don't
> > recall the degree.
> 
> Better to use sharpening after RAW conversion only, when you have  
> much more control over its operation. That explains some of the halo  
> and other other artifacts.
> 
> Godfrey
> 

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