 BetterPhoto Member |
Film scanner resolution. What resolution would be considered adequate for a film scanner? I wish to use it for high quality images that will be printed as large scale exhibition work. What sort of printer would best match this scanners resolution?
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Ken Pang |
Peter, Depending on how much you want to spend,you may end up having to use laser drum scanners and pay someone to do it for you. Even the top end consumer scanners only do to 1200 dpi, and prosumer ones, to 2400 (already getting expensive. If detail and sharpness isn't all that important, what is not uncommon is to scan at the highest possible, then interpolate to a massive size to print to a large size. However, I do find that a 1200 DPI scan of a 6 * 4 can be convincingly printed to a A2 sheet of paper if interpolated, smoothed and sharpened correctly. Ken
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Ken Pang |
Oh, Didn't see your other question about printers... A dye sublimination printer only needs to be at 300dpi to print what looks like a photograph. On the other hand, a inkjet printer needs to be around 1200 DPI. Why? Because you need 4 dots of ink (CMYK) to simulate true continuous tone colour printing. Once again, anything larger than A3, and you're looking pro job, not home job. Cheers mate. Ken.
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doug Nelson |
Peter, The Hewlett-Packard S-20 film scanner scans at 2400 ppi ($500). The Nikon Coolscan IV scans at 2900 ($900), and, for $1,600 the Nikon 4000 scans at 4,000. You might buy one of these,or find somebody with one, and scan your best images. Drum scanning costs a lot, and you may find you coulda bought a scanner before you're done. Size your scans to the image dimensions you want in Photoshop, but don't let the resolution drop below 240 ppi. Burn them to CD and find someone with an Epson 1270 or 1280, or 2000P. See if the print is what you want in quality. Consumer inkjets have gotten a lot better lately. Epson will give you a nice photo quality print at 240 ppi input, but use 300 dpi as a rule of thumb for input. Every publisher I've heard of so far asks for a 300 ppi resolution, which amounts to about 150 lines per inch printing.
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