Re: truth in scanning


Liam Lawless (lawless@vignette.freeserve.co.uk)
Fri, 05 Mar 1999 05:08:52 +0000


Hi Judy,

Don't know about your printer, but size difference occurs on screen if scan
resolution is different to screen resolution (e.g. 300 dpi scan will appear
5 times as large displayed on 72 ppi monitor). Could this have something to
do with it?

Liam

-----Original Message-----
From: Judy Seigel <jseigel@panix.com>
To: alt-photo-process-l@sask.usask.ca <alt-photo-process-l@sask.usask.ca>
Date: 05 March 1999 04:24
Subject: truth in scanning

>
>A couple of months ago I wondered to the list why a print scanned into
>Photoshop on my flatbed scanner printed out larger (or smaller, I forget
>which).
>
>My plan had been to use that for a mask or negative for an added coat, but
>no dice. Someone else at the time said he'd had the same thought, which
>didn't work either, and we speculated where the fault lay and if it would
>ever be possible.
>
>Measuring an image generated entirely in Photoshop showed that it printed
>out precisely, so the fault lay in the scanner -- but where? Now I've
>upgraded the scanner software, new version whatever. And guess what? Yes,
>a picture scanned in and printed out (from Pagemaker) came out perfectly
>right size!
>
>This was a smallish picture, so don't know if larger printout would also
>hold, but it looks good. However, I did two versions, one on acetate and
>one on paper, there was a *slight* difference between them, presumably the
>acetate melted a bit...
>
>But essentially, the news is good: looks to have been the scanner
>software.
>
>Judy
>
>



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