Bill T (New Mexico) , Aug 09, 2005; 11:23 a.m.
Smart Sharpen seems to be a sort of quick & dirty, one-size-fits-all approach to sharpening.
Of course an important basic principle is that sharpening that looks good on your screen will probably look gross on a print.
There are as many tricks and formulas for sharpening as there are people using Photoshop. For prints, my current favorite is to convert to Image>Mode>LabColor, and in the channels tab select just the "Lightness" channel which presents a washed out monochrome image on the screen. Then I apply some sharpening scheme such as USM 300,0.3,0 or some such, depending on the image size and it's character. Then convert back to RGB and print. I do this to a temporary copy of my original just before printing, but I don't actually modify the original. To my eye this doesn't introduce any obvious "sharpening edges" or other distracting artifacts in the print, and noise doesn't pick up more than a tiny bit if at all.