Archived posting to the Leica Users Group, 2002/03/18

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Subject: RE: [Leica] Print film scanning D-Max?
From: "Tim Atherton" <tim@KairosPhoto.com>
Date: Mon, 18 Mar 2002 12:08:48 -0700

Thanks Austin,

I meant more along the terms of how did you explain it rather than justify
it...!

Could you explain what you mean by dRange and what this means for scanning.

thanks

tim



> -----Original Message-----
> From: owner-leica-users@mejac.palo-alto.ca.us
> [mailto:owner-leica-users@mejac.palo-alto.ca.us]On Behalf Of Austin
> Franklin
> Sent: March 18, 2002 9:23 AM
> To: leica-users@mejac.palo-alto.ca.us
> Subject: RE: [Leica] Print film scanning D-Max?
>
>
>
> > Was it on the LUG that someone posted that negative films only need a
> > scanner d-max of 2.8 or some such?
>
> Hi Tim,
>
> Yes, it twas I who posted that some such ;-)
>
> > Also, if so, what was the rationale?
>
> Do you mean what do I base my claim on?  20+ years of measuring
> film with a
> densitometer...as well as over 10 years of scanning film...
>
> Technically, it's not dMax that matters, but dRange...and often people say
> dMax when they really mean dRange...or they simply reference dMax
> to a dMin
> of 0, and therefore dMax and dRange are the same.
>
> Austin
>
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