preserving / ressurecting old docs?

From: Sellam Ismail <>
Date: Fri Jun 29 22:58:46 2001

On Sat, 30 Jun 2001, Davison, Lee wrote:

> > > Scanning printed material much above 150dpi is usually a waste
> > > as most printing is done at about 70dpi.
> >
> > What are you smoking, and is there enough for the rest of us?
> >
> We're talking old manuals here. Remember? OLD manuals.

Why should that matter? Ink on paper is still ink on paper no matter how
old. The resolution required to scan printed pages with any sort of
decent quality remains the same whether you are scanning 5 century old
pages or 5 second old pages.

> > 600 Dpi with resolution enhancement is very old technology
> > for laserprinters
> >
> Nobody, commercially, makes books on laserprinters.

Sure they do.

> > If you can manage it, i would say scan at 600 Dpi.
> >
> Waste of time, effort and storage space.

No it isn't. It's looking toward the future when we'll have a terrabyte
hard drive in our desk tops (end of next year probably) and bountiful

600DPI would be cumbersome for most folks today but two years from now
we'll all be bemoaning the fact that most scans done today were only

> > scanning at 1/2 the target printer resolution is probably
> > the best you can hope for.
> >
> Scanning at just over twice the source resolution is the best you
> will ever get. More than that's a waste.


What IS the source resolution? Of a printed page? HELLO! Close enough
to infinity to practically call it that!!!

Sellam Ismail Vintage Computer Festival
International Man of Intrigue and Danger
Received on Fri Jun 29 2001 - 22:58:46 BST

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