![]() Naked eye, but they show up quite clearly under a 10 x Note the missing tic marks! It might be wise to resize this image down Screen magnification 75 pixels per inch: 13.3 (relative to print size) for these 0.5 cm = 0.197 inch target segments Example: the 4x magnified imageīelow has been resized by a factor of 4000/(4*1600) = 0.625.Īssuming 75 pixels per inch screen resolution, the screen magnification Obtained by resizing the scanned prints by a ratio = (film scan dpi) / The display images below illustrate the scanned targets between 10 andġ00 lp/mm (the same as the target segments illustrated above). On simulation, and hence represent the best that can be accomplished: noĬamera shake (good tripod), good focus, etc. Three targets were used: original, Provia unsharpened, and Provia sharpenedĪ reminder: the targets for unsharpened and sharpened Provia are based Except as noted, the scan illustration shows portions of bandsġ and 3 (original target on bottom and clipped, contrasty image on top). ![]() The scan illustration shows 10 to 100 lp/mm the density plot shows 2 toġ00 lp/mm (both referenced to the target). The contrastĪnd brightness of the scanned image was adjusted for minimum and maximum Images were scanned by the Epson 1640SU in its default settings. Paper motion, i.e., vertical in a portrait format print.Įpson Premium Semigloss Photo paper was used. The targets were 4000 dpi and printed lengthwise along the direction of The Epson 1270 was set for Color Ink, Photo-1440 dpi, High Quality Halftoning, Prints were made under the following conditions.
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