This article is intended for the DSLR camera user, who has some notion of what DOF and apertures are, in relation to imagers. However, we welcome you to read the following regardless of your photographic experience or level, because it will eventually make sense to you.
In this page we examine the MTF of scanners and sharpening algorithms, and we address the question, "What scanner resolution (pixels per inch or dpi) is required for a digital print to appear sharper than a conventional darkroom print?"