<ATDYW@ASUACAD.BITNET> (06/01/91)
Does anyone out there know of a way to digitize microfische? I'm aware of ways to dump computer output to fische, but what about the other direction? Any help will be apreciated. Dan Wilson
dce@smsc.sony.com (David Elliott) (06/04/91)
In article <91152.035047ATDYW@ASUACAD.BITNET>, ATDYW@ASUACAD.BITNET writes: |> Does anyone out there know of a way to digitize microfische? I'm aware of |> ways to dump computer output to fische, but what about the other direction? |> Any help will be apreciated. Someone here had the same question, but never brought in a test fiche for us to try out. It seems to me that a moderately high-resolution flatbed scanner should do the trick. Even a good 400dpi greyscale/color scanner should be able to produce a large enough picture to be usable. -- ...David Elliott ...dce@smsc.sony.com | ...!{uunet,mips}!sonyusa!dce ...(408)944-4073 ..."Art is never fair" - paa
troby@diana.cair.du.edu (Thorn Roby) (06/06/91)
XRS makes a microfilm scanner for 16mm reels but it can't handle fiche, and is designed for sequentially scanning an entire reel. They can be reached at (213) 214-1900. Vexcel in Boulder CO (sorry, don't have their number) has a very high resolution scanner used for aerial photos which might be adaptable to fiche. Not cheap though. I doubt that a 400 dpi scanner would provide enough information to be useful. If the medium transport problems could be solved, it's possible that a slide scanner (Nikon, Barneyscan, Microtek) might provide enough resolution (2000-4000 dpi). But my guess is that unless you're going to do a lot of this your easiest route is to print the fiche to paper and scan the paper. -- Thorn Roby troby@diana.cair.du.edu CARL Systems, Inc. troby@carl.org 777 Grant Street, Denver, CO 80203 (303) 861-5319
jb@falstaff.mae.cwru.edu (Jim Berilla) (06/06/91)
In article <1991Jun4.151733.20348@smsc.sony.com> dce@smsc.sony.com (David Elliott) writes: > [...] Even a good 400dpi greyscale/color scanner should be >able to produce a large enough picture to be usable. In article <1991Jun5.184025.17868@mercury.cair.du.edu> troby@diana.cair.du.edu (Thorn Roby) adds: > [...] >I doubt that a 400 dpi scanner would provide enough information >to be useful. If the medium transport problems could be solved, it's >possible that a slide scanner (Nikon, Barneyscan, Microtek) might >provide enough resolution (2000-4000 dpi). But my guess is that unless >you're going to do a lot of this your easiest route is to print the >fiche to paper and scan the paper. Reality check time. I think that Thorn Roby is right. On the fische that I have in my hand, a page measures about .2" by .26" (5 by 6.5mm). A random line selected from one of the pages has 97 characters. The horizontal resolution would be .8 pixels per character at 400 dpi. -- Jim Berilla / jb@falstaff.cwru.edu / 216-368-6776 "My opinions are my own, except on Wednesday mornings at 9 AM, when my opinions are those of my boss."