U of S | Mailing List Archive | alt-photo-process-l | Re: curves and gum and Christopher James book

Re: curves and gum and Christopher James book

  • To: alt-photo-process-l@usask.ca
  • Subject: Re: curves and gum and Christopher James book
  • From: Michael Koch-Schulte <michael@mondotrasho.ca>
  • Date: Mon, 10 Mar 2008 12:44:53 -0600
  • Comments: "alt-photo-process mailing list"
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  • In-reply-to: <C3FADFBE.C458%henry.rattle@ntlworld.com>
  • List-id: alt-photo-process mailing list <alt-photo-process-l@sask.usask.ca>
  • References: <47D51F49.9040307@videotron.ca><C3FADFBE.C458%henry.rattle@ntlworld.com>
  • Reply-to: alt-photo-process-l@usask.ca
  • Sender: mkochsch@gmail.com

Henry, it all depends how the curve data was gathered in the first place. Neither is right or wrong it's more a matter of workflow. I choose to apply my curves to the positive because I'm taking my readings from a developed positive. I also like to work in PS with the curve putting my highlights in the bottom left corner using the graphic scale of 0-100 rather than the binary scale of 0-255. The important thing is that you apply the curve to the image at the correct stage of the procedure. Dan Burkholder started doing it this, I also do it this way. It intuitive for me. Others apply the curve to the negative.

On Mon, Mar 10, 2008 at 6:53 AM, Henry Rattle <henry.rattle@ntlworld.com> wrote:
However one thing puzzles me - there's a note alongside the curve which says
"Note from David: The curve is applied before inversion to a negative and
the image should be RGB."