Results 1 to 3 of 3

Thread: Pt/Pd Highlight Development

  1. #1
    joekenney
    Join Date
    Jun 2010
    Location
    Philadelphia
    Posts
    5

    Pt/Pd Highlight Development

    I am making my initial Pt/Pd negatives and am wondering to what highlight value should I develop using HP5+ and Pyrocat-HD?
    Should i develop the highlight to circa 1.70 or push towards 2.0?
    I am uncertain of the contribution of the stain.
    Thanks much.

  2. #2

    Join Date
    Oct 2006
    Posts
    1,953

    Re: Pt/Pd Highlight Development

    Quote Originally Posted by joekenney View Post
    I am making my initial Pt/Pd negatives and am wondering to what highlight value should I develop using HP5+ and Pyrocat-HD?
    Should i develop the highlight to circa 1.70 or push towards 2.0?
    I am uncertain of the contribution of the stain.
    Thanks much.
    Depends on your Pt/Pd mixture and to some extent your developer and paper. First determine the ES of the paper. Then empirically determine the development time for your film. This is the very short answer.

    One assumes you have a UV transmission densitometer and are measuring step tablets made on HP5+ since you are quoting or asking about log density film values.

    Don Bryant

  3. #3
    joekenney
    Join Date
    Jun 2010
    Location
    Philadelphia
    Posts
    5

    Re: Pt/Pd Highlight Development

    Helpful advice,
    Thanks Don.

Similar Threads

  1. BW Processing: Rotary Vs. Non - The Final Showdown
    By sully75 in forum Darkroom: Film, Processing & Printing
    Replies: 62
    Last Post: 4-Aug-2010, 19:40
  2. Developing FP4+ and Pyrocat HD; hold hilites but gain more shadow detail
    By gevalia in forum Darkroom: Film, Processing & Printing
    Replies: 7
    Last Post: 17-May-2010, 08:56
  3. What is stand development, semi-stand development, Agfa development?
    By ericzhu in forum Darkroom: Film, Processing & Printing
    Replies: 6
    Last Post: 21-Dec-2008, 10:35
  4. Uneven Development problem with semi-stand
    By Gregory Ng in forum Darkroom: Film, Processing & Printing
    Replies: 7
    Last Post: 3-Apr-2007, 07:52
  5. TMY/510-Pyro development data
    By Jay DeFehr in forum Darkroom: Film, Processing & Printing
    Replies: 8
    Last Post: 26-Feb-2006, 22:26

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •