I have spent the last few years cataloging our photograph collection. I have recently started scanning our collection of glass plate negatives and the HP Scanjet series (4890+) are the only scanners on which you to scan large (8" x 10") glass plate negatives. They will also allow you to scan 16 35mm slides at a time which is helpful if you have a lot of slides to scan. There is no set dpi setting for scans. It depends on what the final product will be. There are a few general guidelines, but it is better to understand how you are manipulating the pixels to best achieve the desired results. I highly recommend the book, "A few scanning tips" by Wayne Fulton, see http://wwwscantips.com I also recommend the free program Paint.Net to manipulate the scanned file. It has a sepia feature that really enhances the old B/W photos, as well as cropping, contrast/brightness adjustment, and color enhancement features. Good luck and have fun! ========================================================= Important Subscriber Information: The Museum-L FAQ file is located at http://www.finalchapter.com/museum-l-faq/ . You may obtain detailed information about the listserv commands by sending a one line e-mail message to [log in to unmask] . The body of the message should read "help" (without the quotes). If you decide to leave Museum-L, please send a one line e-mail message to [log in to unmask] . The body of the message should read "Signoff Museum-L" (without the quotes).