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----- Original Message ----- From: "David J. Bookbinder" <firstname.lastname@example.org> To: "DigitalBW (E-mail)" <DigitalBlackandWhiteThePrint@yahoogroups.com>; "Scan (E-mail)" <email@example.com> Sent: Friday, May 03, 2002 9:45 AM Subject: Scanning old postcard for use on book cover > NOTE: I'm cross-posting to the DigitalBlackandWhite and the Scan lists. > > A friend of mine has asked me to scan an old postcard she will be using on a > book cover. The postcard is in black and white, on time-yellowed stock. It > will be positioned at a roughly 30% angle from horizontal on the book cover. > The service bureau wants a 300dpi TIFF file, and they are using a 150 line > screen. I'm wondering: > > 1. Do I need to take into account the dot pattern of the postcard somehow, > and if so, how? Maybe - try scanning straight first. If you end up with moire, then try different angles as scanning at an angle will deal with or at least help reduce moire. > 2. Am I better off scanning the postcard at the approximate angle at which > it will be printed, or rotating it in photoshop? Don't rotate at all - the service bureau wants a regular image and will rotate it themselves. > 3. Am I better off trying to adjust for the yellowing in the scanning > process, or do that later in Photoshop? And, if the latter, am I better off > scanning in RGB so I can selectively remove or lighten the color before > turning the image into black and white? Whatever you're most comfortable with, and perhaps in both. In any event I would certainly scan in RGB so that you can control the conversion to B&W in Photoshop with all it's tools. > 4. How much sharpening should I apply to this image before I hand it back to > my friend? I normally output to inkjet printers, and they seem to require > almost no sharpening, but everything I've read indicates this is not the > case with press work. I don't know either - I've never done press work. Maris - Turn off HTML mail features. Keep quoted material short. Use accurate subject lines. http://www.leben.com/lists for list instructions.