I am doing various export tests to get nice looking thumbnails for my photoapps. My thumbs are 120 x 80. So far the output sharpening from Lightroom looks the best, (sharpen for Screen, High) only problem is the filesize… I can't get them under 25KB. My ideal filesize would be 10-12KB. When I set the "Limit File Size To" to these numbers LR just does not care and goes again over 25KB. Using a low quality number (like 40) and again 25KB very badly compressed.
Photoshop's "Save for the Web" gives me the desired filesizes, but I can't get the sharpening good looking like LightRooms. In photoshop I resize to 120 x 80 (bicubic sharpener) and do > unsharp mask, amount 50%, Radius 1.0, Threshold 0 Obviously using these defaults is not the best way to go. I think I remember something about smart sharpening or high pass sharpening?
So I wanted to know what are the best sharpening techniques in PS to get great looking thumbnails? Cheers