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

[Loris Medici]

I've said that; my description "...Agfa CopyJet, SelectJet transparency
material..." should've been triggered something in your mind...

Knowing about this pretty obvious fact, I've also stated which paper I'm
using by writing  "...on Weston paper, single coating...", plus, for iron
processes I (we) often do calibrate separately for each paper; since most of
the time it makes a significant difference "also in the tonal structure".
(You already know about speed...)

Regards,
Loris.


-----Original Message-----
From: alt-photo-process-list-bounces at lists.altphotolist.org On Behalf Of
Terry King
Sent: Friday, July 16, 2010 10:19 AM
To: alt-photo-process-list at lists.altphotolist.org
Subject: [alt-photo] Re: Vandyke exposure amny. w/ NuArc 26-1KS?

Loris

Perhaps you should have said so.
Even with a digital negative you appear to be saying that the exposure
depends on the other variables such as the paper you are using. That is
hardly a standard exposure.

Terry

-----Original Message-----
From: Loris Medici <mail at loris.medici.name>
To: 'The alternative photographic processes mailing list'
<alt-photo-process-list at lists.altphotolist.org>
Sent: Fri, 16 Jul 2010 6:17
Subject: [alt-photo] Re: Vandyke exposure amny. w/ NuArc 26-1KS?


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