In this page Norman Koren examines the MTF of scanners and sharpening algorithms, and addresses the question, “What scanner resolution (pixels per inch or dpi) is required for a digital print to appear sharper than a conventional darkroom print?”
Norman Koren lives in Boulder, Colorado, founded Imatest LLC in 2004, previously worked on magnetic recording technology. He maintains his own website with tutorials and other information on (digital) photography.