2009
Photoshop tutorial: Sharpen photos with high pass filter
by semichaoticI don't use the photoshop unsharpen anymore - I prefer the high pass filter especially for applying selective sharpening.
Don't hit it too hard though or the results will look artificial.
2006
Keen Sharpening
by marco (via)Matchless sharpening technique using High Pass filter and Hard light blending in Photoshop
1
(2 marks)