It's going to depend on what the subject is, whethere there's a lot of fine detail or large areas of colour gradients such as sky or skin.
Generally I use:
- Amount: 25-40
- radius: 0.8-1.4
- Detail 0-50 (depeinding on noise)
- Mask 0-60
I'm not sure if you're aware, but holding down the ALT key will give you a mono view of the effect which is much easier to see.
You should have presets called "Sharpening - Narrown Edges" and "Sharpening - Wide Edges", you can start with those.
Matt Kloskowski has an excellent sharpening tutorial on Kelbytraining.com called "TACK SHARP! Sharpening in Adobe CS5 & Lightroom 3". I believe the site has a free 24hr trial if you don't have a memebership.
I will use the adjustment brush to selectively sharpen things like eyes, hair, clothing, jewelry if that's required. I almost always sharpen the eyes if they're prominent and use a small radius brush to burn the edge of the Iris.
The one thing that LR is missing is the ability to do selective output sharpening as the sharpening is applied to the whole image on export and you only have a few choices. For images that really matter, I prefer to sharpen in CS5 where I have more options and the ability to mask sharpening out of water, skin, sky etc. and I can also apply some selective NR if that's required too.
D7000 RAW shooters:
What sharpening radius size and detail settings do you typically use as a default for D7000 RAW files when using LR3 ? I seem to get slightly better detail and less artifacts with ViewNX2 than I do with LR3. I would like to get similar results with LR3 as easily as ViewNX2, but unfortunately, the sharpening radius and edge sharpness used in ViewNX2 is hidden.
Best regards,
Jon