[alt-photo] Re: Vandyke exposure amny. w/ NuArc 26-1KS?

[Loris Medici]

Irrelevant in the context of digital negatives, since all the negatives have
exactly the same contrast range...

-----Original Message-----
From: alt-photo-process-list-bounces at lists.altphotolist.org On Behalf Of
Terry King
Sent: Friday, July 16, 2010 7:36 AM
To: alt-photo-process-list at lists.altphotolist.org
Subject: [alt-photo] Re: Vandyke exposure amny. w/ NuArc 26-1KS?

Loris
Unless all your subjects have the same contrast range, there is no standard
exposure.

You need to know:
1. the d max potential of the process , i.e. the maximum density negative
that the process will print
2. the d max of your negative for a particular image'

Your exposure will then be 2 in relation to 1