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---------------------------------------------------- Dear Robert, Please see my answers below. If you need more information please feel free to contact me directly. What I would be interested in is learning about your plans for long-term archiving of digital information and what kind of meta data you plan to use for archiving. Best regards, Werner Schweibenz German Art History Institute at Florence Kunsthistorisches Institut in Florenz Max-Planck-Institut via Giuseppe Giusti, 44 I-50121 Firenze phone: 0039-055-24911-39 fax: 0039-055-24911-55 ------------------------------------------------- >1. The most common file sizes of the images once scanned (Megs/KB per image) - to provide an indication of how much space will be needed on the server That depends on the league you want to play in and the materials you scan (color, monochrome). We digitize monochrome art photography and have to provide high resolution images. Our master files are 100 to 130 MB big for 16 bit with a range from 3,200 dpi to 2,400 dpi depending on the negative size. We also create work files of about 25 MB and 8 bit for practical handling. > 2. The file types most suitable (eg tiff/jpg) We use TIFF (uncompressed). Don't use JPG with compression. There is the danger to lose information because of the compression in case the file gets damaged. Maybe JPG2000 would be an interesting alternative as it offers lossless compresson. I would be interested to read about that if you have some experiences. > 3. The scan size for document output (eg A4 etc) We use 8 bit gray scale with 4,000 pixels to provide A3 size images for art publications. > 4. The scan resolution requested (dpi) Cf. 1. > 5. The scan color profile most suitable and most commonly required (RGB/CMYK B&W etc) That depends on the material you scan. We use monochrome (B&W) and RGB for color. > 6. The preferred delivery channel (eg e-mail or CD) from museum to enquirers/researchers and if possible the associated uses (eg website/publication). We are currently working on a Web image base. > 7. The type/details of hardware and software used in the capture process. For scans we use a Hasselblad/Imacon scanner 2848 for bigger than 6x6 negatives and a Hasselblad/Imacon scanner 343 for 6x6 negatives. The 343 is very slow, so I would not recommend it. With the 2848 we had several hard- and software problems. Although the support teams of Hasselblad/Imacon is very helpful the problems have caused some delay in the course of our project. > 8. Comments on the use and acceptability of digital compression programes/plugins for archival purposes. We don't use any and do not plan to do so. For long-term archiving compression poses several risks, so we were told not to use any. --- H-MUSEUM H-Net Network for Museums and Museum Studies E -Mail: firstname.lastname@example.org WWW: http://www.h-museum.net