3 Aug
2000
3 Aug
'00
11:12 a.m.
On Thu, 3 Aug 2000, John Foust wrote:
All evidence points to the light is under software control. Indeed,
I believe UMax's software for Windows for some of its less expensive
scanners includes a desktop applet that lets you turn the light on
and off manually.
I wish I could turn the light on my Microtek scanner off... I hate
having to reboot windows so it will recognize the stupid thing...
Some people claim that their scanner will scan
transparencies even
though the film isn't back-lit.
Most scanners have a non-reflective black pad on the back side. If
you put something reflective behind (a mirror?) the transparency,
the light will go through and be reflected back. A potential
problem is the reflection from the front side of the transparency.
I wonder what would happen if
you back-lit with an ordinary flourescent with a diffuser.
I'd need to dig to find some microfiche.
- John