4 Jul
2011
4 Jul
'11
11:02 p.m.
Fiche were routinely done at two resolutions(I just googled 3
magnifications 24x,42x,48x) that I know of,
I have an Epson perfection 3200 photo scanner, its the first thing I
tried a year or more ago,
unfortunately its not good enough for the high magnification used for DEC fiche
I have a paper RRD42 user manual which is 7" wide, that makes DEC fiche
are/were made at 42 x reduction, therefore I need 16800 to get 400 dpi
of an original
5 times higher resolution than my Epson has.
Dave Caroline
On Mon, Jul 4, 2011 at 11:53 PM, jim s <jws at jwsss.com> wrote:
I was able to do an entire fiche sheet in about 10
minutes with an Epson
Perfection (with transparency backlight) and their software.
The way to do it is to set up a spot on the scanner bed where you will spot
each sheet. ?After doing a reference scan, the software allows you to make
up a scan area select icon, which I placed around one of the images on the
reference scan. ?I can also see the size to be able to recreate the shape
each time i restart.
You can place it over each image, and the scanner will do the scan for each
image as you hit the scan button. ?I would then manually move the icon to
the next image on the sheet, till done.
I set the resolution high enough on the scans to produce an image equivalent
to what one would get if scanning an 8 1/2 x 11 page (what the images were)
if scanning at 400dpi.
The main project is the War Diaries of a US Navy Squadron, but you can see
the results here:
http://vpb208.org/Diaries%20and%20Documents.html
Jim