Re: NEGS FOR PT/PD

[Steve Shapiro <sgshiya@redshift.com>]

Very interesting post, below.

Bob describes exactly how Ansel Adams came up with his famous Zone System of
printing.

S. Shapiro, Carmel
----- Original Message -----
From: "Bob Kiss" <bobkiss@caribsurf.com>
To: "ALT PHO PROC." <alt-photo-process-l@usask.ca>
Sent: Friday, May 17, 2002 6:11 AM
Subject: NEGS FOR PT/PD


> DEAR LIST,
>     I forget who, but someone asked if, during the process of enlarging
> negatives, one could adjust the density (dynamic) range in order that,
> starting with a camera original negative developed for silver-gelatin, one
> could yield an enlarged neg with the proper density range for PT/PD.
>     The answer is simple...YES.
>     If you have a negative with decent shadow detail and open (not
blocked)
> highlights that prints well on your favorite silver-gelatin paper, with
some
> testing, you should have no problem expanding the density range during the
> interpos-to-enlarged neg process (or, if you are feeling bold, with direct
> copy film) to yield a density range for any alt process you want.  One
needs
> to know a bit of sensitometry  but sometimes we, on this list, persist in
> flagellating a moribund equine quadruped.   My last name is something of
> which I try to remind my self every day: "KISS = keep it simple stupid".
>     I hope this helps.  I feel that more experienced PT/PD printers like
> Eric Neilson and Jeffrey could give more details and guidelines than I but
> it is very "do-able".
>                             CHEERS!
>                                 BOB
>