A commercial copying operation should be able to copy these rapidly and cheaply
Robin
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On 29 Mar 2018, at 13:56, Chuck Harris <cfharris@...> wrote:
Once upon a time, I scanned a $20 bill on my scanner in
full subscanned resolution, and I got a humongous file, I think
it was 10 or 20 Mb. The resolution was astonishing! I could
see the individual ink dots, and the cell structure of the
paper used to make the bill.
I think it is very possible that you could scan the individual
sheets of microfische on a good scanner. You might need to do
something to make the lighting consistent.
I have a couple of boxes of fische... I think I will give it a
whirl.
-Chuck Harris
cnc_joker wrote:
The quality of images in most microfiche that I have used is quite poor. Perhaps using
a high resolution bed scanner would be sufficient. I have an Epson V700 scanner
that has real optical 4800 DPI resolution and 9600 DPI if you use sub-sampling. There
may be even higher resolution scanners that don't cost a lot of money. There are up to
14 page images across the 4 inches width of a microfiche. My scanner would get about
150 DPI (300 DPI sub-sampled) on a single page which should be good enough to get a
usable image.
Pete.
