Jim. thank you for your responses. Your second answer was actually the one that related to the question I had posed; however, I also appreciated your other comments. When I am inclined to use the low-amount/high-radius "sharpening" contrast adjustment, I have applied it just before my substantive sharpening, to a file that has been sized for print, and my sharpening settings are customized for that print size. You now have me thinking about applying it earlier, as part of my master file before I have sized it for print. For each photo file I work on, I save an unsized edited master, and also save a separate file sized and sharpened. For additional sizes, I go back to my master, sizing and sharpening from there, and save a new file sharpened to my liking for that size. After becoming comfortable with the settings in Unsharp Mask in Photoshop many years ago, I have continued to do my sharpening in PS, fine-tuning with adjustments among the three parameters. I like the control this gives me, and have been happy with the results. I've been using Canson Platine and similar papers for so long now that I haven't been driven to distraction by needing different sharpening settings for different media. I've begun to experiment with canvas, so that will be a new experience. Again, many thanks for your responses. --Barbara