Re: Back-exposing on plastic (was: Re: Gum transfer

Mark,

as I said to you privately, I'm sorry. I find this version to be much easier for me to understand and like your conclusion very much.

Regards and I mean it
Yves
  ----- Original Message -----
  From: Ender100@aol.com
  To: alt-photo-process-l@usask.ca
  Sent: Tuesday, May 02, 2006 9:55 PM
  Subject: Re: Back-exposing on plastic (was: Re: Gum transfer

  Yves,

  You are correct, there are a couple of typos in the paragraph—it should have read:

  Let's assume that a digital negative can have a maximum of 256 possible tones of density (If that is ok with you) and that a radical curve is going to reduce the number of tones from 256. However let's just assume that a curve that is not radical will do the job. Let's also assume that the negative's density range matches the exposure scale of the gum mix before the curve is added.

  Now, let's assume that by now I have forgotten what the hell the original question was. hehehehe

  Best Wishes,
  Mark Nelson
  Precision Digital Negatives--The Book
  PDNPrint Forum at Yahoo Groups
  www.MarkINelsonPhoto.com

  In a message dated 5/2/06 5:53:14 PM, gauvreau-yves@sympatico.ca writes:

    Mark,

    I'm sorry Mark, I don't get it, "define parameters" like you do here and from a person who wrote a highly regarded book on the subject. What's a "tones of density"? Ok, I figured that one out. I'm beginning to think that like me english is not your forte and it would explain a lot of things like the para below where I see more confusion then definitions.

    Regards

    Yves

     
>Let's assume that a digital negative can have a maximum of 256 possible tones of density. (If that is ok with you) and that a radical curve is going will >reduce the number of tones from 256, so let's consider a not so radical curve. Let's also assume that the negative matches the exposure scale of >the gum mix before the curve is added.
Received on 05/02/06-08:34:06 PM Z