Page 1 of 3 123 LastLast
Results 1 to 10 of 29

Thread: Film for Pyro Development for Alt Process

  1. #1
    alec4444's Avatar
    Join Date
    Jun 2006
    Location
    New York City
    Posts
    652

    Film for Pyro Development for Alt Process

    Hey guys,

    I've been learning on (playing with) my large format camera with Efke PL100 film. I chose this film because it was my film of choice in medium format....I love the look of Efke film for standard silver gelatin prints. I was not disappointed with it in 11x14 sheets.

    But the reason why I got the ULF camera was for alt processes. From what I have read, most of them (platinum, cyanotype, albumen, etc) benefit from a negative that has a bit higher density than is typical. Going on more from what I read: the way to get that kind of density is with Pyro developers.

    Further research has uncovered that Efke films typically do not perform well with Pyro developers. Bummer.

    So, my questions to this group are:
    1. What films respond best to Pyro Developers? (Let's use PMK as a start)
    2. With the film you suggest, what ratio or development times should I use to try to achieve a negative with adequate density?


    I know that question 2 depends a lot on the exposure, the water temp, the acidity of the water, the phase of the moon, etc but I need a jumping off point. Any tips you can give would be helpful.

    One idea I had was to take the first neg (of whatever type of film I try) to someplace like MV Labs and tell them I want a neg developed in pyro with a density of 1.8 (or whatever it is I need). At least then I might have a visual clue as to what my negatives should look like... What do you think?

    Thanks!
    --A

  2. #2
    tim atherton's Avatar
    Join Date
    Jul 1998
    Posts
    3,693

    Re: Film for Pyro Development for Alt Process

    okay... I don't use it for alt processes, but my favourite developer for Efke PL100 in 4x5 and 8x10 is Pyrocat

    what's the info you have for Efke films typically do not perform well with Pyro developers ?
    You'd be amazed how small the demand is for pictures of trees... - Fred Astaire to Audrey Hepburn

    www.photo-muse.blogspot.com blog

  3. #3
    alec4444's Avatar
    Join Date
    Jun 2006
    Location
    New York City
    Posts
    652

    Re: Film for Pyro Development for Alt Process

    Found this thread. I have found a few threads stating it's ok, but it seemed inconsistent compared to some of the more "mainstream" films... If you think it's something I should try, heck, I'll give it a go. It would kinda simplify my life a bit to have one film and two developer options.....

    --A

  4. #4

    Re: Film for Pyro Development for Alt Process

    They are perfectly good films. Efke 25 is still my film of choice. It's kind of weired reading stuff you posted 4 years ago.
    Give whatever you want to try a shot and you can work out any problems on the forums.

  5. #5
    Whatever David A. Goldfarb's Avatar
    Join Date
    Mar 2000
    Location
    Honolulu, Hawai'i
    Posts
    4,611

    Re: Film for Pyro Development for Alt Process

    For alt processes, I don't recommend PMK. PMK generates a lot of background stain, which might enhance the grain masking effect for negs that are to be enlarged, but it doesn't help build contrast for alt processes.

    I print albumen, and I use good ol' ABC pyro. I like the way it renders highlights, and it's easy to control, and it has a nice sharp look. The penalty is grain, but that's not a problem with contact prints or even small enlargements from negs developed to a density appropriate for enlargements.

    For speed I use RAF pyro-metol, a formula designed by the Royal Air Force for reconnaisance photos. I've posted the formula in the formulas section on APUG, and you can find it in Haist and a few other places. The look is compatible with ABC.

    Efke/Adox PL100 is an excellent film to use for this purpose. I also use Forte/J&C Classic 400 (with the recent Forte announcement, who knows for how much longer), and Tri-X.

  6. #6

    Join Date
    May 2006
    Location
    Texas
    Posts
    250

    Re: Film for Pyro Development for Alt Process

    A...I use Efke PL100 with 4x5,5x7 and 8x10 rated at 50, develope in Pyrocat 2+2+100 for 121/2 min at 72 F. Should state, that I use Beseler Print drums, and a Unicolor roller (which does reverse) and I have been quite happy with the way these print. Any problems I have had tend to be the person processing and not the process. Most of what I print is Plt/Pld, look here to get an idea of contrast range. A couple of the guys use Pyrocat-HD also, Matt does DBI.

  7. #7
    alec4444's Avatar
    Join Date
    Jun 2006
    Location
    New York City
    Posts
    652

    Re: Film for Pyro Development for Alt Process

    Thanks lads. I'll try both ABC Pyro & Pyrocat. GREAT to hear it'll work with Efke.

    David, as a sidenote, I'd love to see one of your albumen prints if you wouldn't mind dragging one to our Central Park event. In reading Christopher James' Alt Process book, albumen was the process that really got me excited and first made me interested in LF. Look forward to talking to you about it.

    Cheers!
    --A

  8. #8
    Whatever David A. Goldfarb's Avatar
    Join Date
    Mar 2000
    Location
    Honolulu, Hawai'i
    Posts
    4,611

    Re: Film for Pyro Development for Alt Process

    I've got a small album of 4x5" albumens that I can bring. See you there.

  9. #9
    alec4444's Avatar
    Join Date
    Jun 2006
    Location
    New York City
    Posts
    652

    Re: Film for Pyro Development for Alt Process

    Quote Originally Posted by David A. Goldfarb View Post
    For alt processes, I don't recommend PMK. PMK generates a lot of background stain, which might enhance the grain masking effect for negs that are to be enlarged, but it doesn't help build contrast for alt processes.
    Hey David (& Co.),

    I just got some PMK for Xmas. After re-reading this thread, I noticed this comment. Should I return it and order the WD2D+ instead? I didn't see ABC for sale at Freestyle. I wanted to try a Pyro formula explicitly for alt. process, and per your comment above, this would not be my solution...

    Thanks!
    --A

  10. #10
    Whatever David A. Goldfarb's Avatar
    Join Date
    Mar 2000
    Location
    Honolulu, Hawai'i
    Posts
    4,611

    Re: Film for Pyro Development for Alt Process

    PMK is a good developer for smaller format films. I like it for 6x6 and 35mm and occasionally a bit larger.

    I haven't used WD2D+. You could mix your own ABC from bulk chemicals. If you're using these kinds of developers anyway, it makes sense to keep the ingredients on hand, experiment with a few different formulas until you settle on the one you like, and then mix it as you need it. Since the sulfite solution can go bad, for instance, with ABC, I generally mix it more frequently in a smaller bottle than the A and C solutions.

Similar Threads

  1. BTZS film testing question
    By Jan_6568 in forum Style & Technique
    Replies: 37
    Last Post: 25-Sep-2006, 23:28
  2. What is the easiest and most efficient way to process 4x5 film?
    By brian steinberger in forum Darkroom: Film, Processing & Printing
    Replies: 25
    Last Post: 10-Aug-2006, 00:14
  3. Depth of Field, Depth of Focus, and Film Flatness
    By steve simmons in forum Cameras & Camera Accessories
    Replies: 65
    Last Post: 7-Jan-2006, 19:30
  4. One-pass cleaning rollers
    By Don Hall in forum Darkroom: Film, Processing & Printing
    Replies: 2
    Last Post: 2-Jan-2000, 18:54
  5. Pre exposure - how much will it increase film latitude?
    By Bill Glickman in forum Style & Technique
    Replies: 6
    Last Post: 9-Sep-1999, 23:29

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
  •