Results 1 to 7 of 7

Thread: Question concerning usage of Pyro developer

  1. #1
    Kaden Kratzer's Avatar
    Join Date
    Apr 2009
    Location
    San Francisco, CA
    Posts
    28

    Question concerning usage of Pyro developer

    I have never used Pyro before. I mainly use Xtol with T-MAX and HP5
    and HC110 with TRI-X. I would be interested in using Pyro for the first
    time. My method of developing 4x5 negatives is thet tray method.

    In a short search I notice that there are different types of Pyro Developer
    and got pretty confused about what type of Pyro to use with what film
    and whether its appropriate for the developing method I am using.

    Help demystifying this issue.

    Thanks in advance.
    Kaden K.

  2. #2

    Join Date
    Nov 2005
    Location
    Richmond, VA
    Posts
    1,043

    Re: Question concerning usage of Pyro developer

    I use Pyrocat HD 2:2:100 in trays with Tmax 400. I've gotten really good results. This combination allows me to build the negative contrast necessary to successfully print on Canadian grade 2 Azo.

    Pyrocat HD is pretty inexpensive and can be purchased from the formulary and I believe, Bostick & Sullivan.

  3. #3

    Join Date
    Feb 2007
    Location
    Van Buren, Arkansas
    Posts
    1,943

    Re: Question concerning usage of Pyro developer

    Your should always use gloves when tray processing in any Pyro developer as it is toxic and absorbed through the skin.

  4. #4

    Re: Question concerning usage of Pyro developer

    I started with, and still use, in trays, PMK from photographers formulary with fp4 and fp5.Not only do I wear nitrile gloves, but also wear one of those double canister respirators.Be sure to wipe up any spills after your done.

  5. #5

    Join Date
    Jul 2006
    Location
    Rolla, MO
    Posts
    395

    Re: Question concerning usage of Pyro developer

    I've had good results with 510 pyro and Tri-X.

    Search APUG.org for more information.

    Mike

  6. #6
    Octogenarian
    Join Date
    Sep 2003
    Location
    Frisco, Texas
    Posts
    3,529

    Re: Question concerning usage of Pyro developer

    I second the use of Pyrocat-HD (in glycol) from Photographer's Formulary.

    It will give excellent results with all of the films that you mentioned.

    Follow the mixing instructions carefully. It is not dangerous to use and it's only toxic if you drink it. So don't drink it!

  7. #7
    Drew Wiley
    Join Date
    Sep 2008
    Location
    SF Bay area, CA
    Posts
    10,557

    Re: Question concerning usage of Pyro developer

    Pyrocat came out a little gritty for me with HP5. I still prefer PMK for tray use. Tried
    PMK-Max recently. Good results but not any better than regular PMK, and quite a bit more expensive. PMK is ordinarily used 1:2:100 (A/B/H2O). I make enlargements, so you might get a very different opinion from contact printers who need longer scale negatives. Although both pyrogallol and pyrocatechol can act as staining developers,
    the effect is somewhat different due to the differing color of the stain.

Similar Threads

  1. Usage Question on Book Covers
    By claudiocambon in forum Business
    Replies: 1
    Last Post: 6-Nov-2007, 17:03
  2. is it possible to remove pyro stain?
    By false_Aesthetic in forum Darkroom: Film, Processing & Printing
    Replies: 5
    Last Post: 30-Oct-2007, 15:55
  3. Question about 130 paper Developer
    By brian steinberger in forum Darkroom: Film, Processing & Printing
    Replies: 32
    Last Post: 9-Sep-2006, 17:16
  4. Two bath developer for compensation
    By Mark Kallfass in forum Darkroom: Film, Processing & Printing
    Replies: 2
    Last Post: 16-Apr-2002, 11:51

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
  •