Re: mystery card in GS

[Alex Lee <alelee@mac.com>]

On 2010-01-08 09:45:15 +1100, Polymorph <polymorph69@hotmail.com> said:

> On Jan 8, 3:57�am, sc...@alfter.DIESPAMMERSDIE.us (Scott Alfter)
> wrote:
> > Scanners have worked pretty well for me over the years at capturing image
> s
> > of expansion cards. �Then again, I've mostly used HP scanners...started
>  with
> > a ScanJet 4p way back in the day that replaced a somewhat temperamental
> > Mustek scanner, and I'm currently using a Photosmart 3210. �Maybe the o
> ptics
> > in HP scanners are set up a bit differently so they'll deliver a bit more
> > depth of field.
>
> Yeah, I have an old (about 12 years old) HP scanner which does a great
> job scanning expansion cards. However, I also have a much newer Canon
> scanner which produces rubbish when scanning expansion cards - no
> depth of field as you suggest. I guess in this case (newer ! better).  ;-)
>
> Cheers,
> Mike

It comes down to the light source used in the scanner itself - Canon 
LIDE scanner employ a LED light source, which doesn't reflect as much 
light back as the more traditional fluro based light sources, and 
anything with depth is lost when scanned. Older scanners are a safe bet 
that depth will be captured, but I've been happily scanning lots of 
things with my Epson Perfection 4490 scanner which is only a couple of 
years old.
--
- Alex
http://www.whatisthe2gs.apple2.org.za/