Archived posting to the Leica Users Group, 2000/04/26

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Subject: Re: [Leica] Epson 870, 1270
From: John Bean <john@jbean.co.uk>
Date: Wed, 26 Apr 2000 11:23:29 +0100

At Wednesday 26/04/2000 07:39, Mark Rabiner wrote:
>Tina Manley wrote:
> >
> > At 01:59 PM 4/25/00 -0400, you wrote:
> > >That's not optical resolution....not possible.
> > >
> > >Dan C.
> >
> > I don't know about optical resolution.  The setting is 5400 dpi or 2700 lpi
> > and it gives you a file of over 100 MB.  Lots of information of some kind
> > there!
> >
> > Tina
>
>Yes but is it made up information?
>Mark Rabiner

It has to be. It might be possible to get more than 2700dpi along the 
length of the frame, but the resolution across the width is defined by the 
sensor hardware.

Having said that, some software (like Genuine Fractals) can make up 
astonishingly believable information. I've done digital sectional 
enlargements from a 2700dpi Nikon scan equivalent to over 40 inch prints 
from full frame. Not as good as a darkroom enlargement, but impressive 
nevertheless.


Regards

John Bean