Originally posted by biz-engineer Thanks for the info, it's good to know.
In lightroom, the approach I use is to set the radius to it's lowest setting, .5, detail in the 80-100 range (I usually start with 100 and only lower it if I have to), and the amount to a very low value, around the mid-to-high teens at the highest. Then use the masking slider to make the sharpening only be applied to edges rather than the whole image. Using the masking this way makes sure LR won't sharpen any noise in the image.
In my experience, the "it's full of worms" tipping point is around high 20s to low 30s on the amount slider with radius at .5, and detail at 100. Obviously it changes a bit on an image-to-image basis depending on the ISO, how far the exposure has been adjusted in LR, the lens used, type of scene, etc.
If you hold the alt/option key while moving the sliders, LR changes the preview in a way that makes it a little easier to see what is going on. For Amount, Radius, and Detail it turns the image black and white, for Masking it shows the parts of the image that will be sharpened in White and the parts that will not be sharpened in Black.
My default preset that is applied to all fuji files during import has sharpening set to 15, .5, 100, and 50 top to bottom in the sharpening section. Then I adjust a bit from there.
Also, LR's output sharpening is still garbage and will introduce artifacts in almost every image it's applied to, even on the "low" setting. So, avoid that at all costs :-P
If anyone is a C1 Pro user, I'd be happy to share my approach in that program too.
Hope that's helpful :-)