perceptol w/ 4x5 Tri-X?

Discussion in 'B&W: Film, Paper, Chemistry' started by Cheryl Jacobs, Jul 31, 2004.

  1. Cheryl Jacobs

    Cheryl Jacobs Member

    Messages:
    1,717
    Joined:
    Jun 10, 2003
    Location:
    Denver, Colo
    Shooter:
    Medium Format
    I finally got a chance to shoot a few frames with my Speed Graphic yesterday. I'd like to develop them and see if I'm doing things right so far. The only developer I have on hand today is perceptol. Can't find any times for tray developing in perceptol, which I suspect may indicate that it's not a good developer for this kind of thing. Still, I don't need perfection today -- I just want to know the camera (and the user) are functioning properly.

    Anyone have a guess as to development times?

    Thanks in advance -

    - CJ
     
  2. David A. Goldfarb

    David A. Goldfarb Moderator Staff Member Moderator

    Messages:
    17,940
    Joined:
    Sep 7, 2002
    Location:
    Honolulu, Ha
    Shooter:
    Large Format
    Perceptol is probably an interesting developer with Tri-X, but the speed should be around 160 or 200. If you've exposed it at 320, it's probably a good idea to wait until you have another developer in hand.

    If you want to give it a go, try using the same time as Microdol-X, which is similar to Perceptol. I did a quick check on the Massive Dev Chart, and Microdol-X and Perceptol times are the same for HP5+, so I'd guess they wouldn't be too far apart for Tri-X. Test one sheet first before running the whole batch--maybe 8 min at 68 deg. F. in Perceptol stock would be my guess (Ilford's recommendation for TX 400 rollfilm is EI 200, 10 min. in Perceptol stock, for comparison. Sheet film should be a little less due to constant agitation).
     
  3. Jorge Oliveira

    Jorge Oliveira Member

    Messages:
    614
    Joined:
    Jun 9, 2003
    Location:
    Brazil
    Shooter:
    35mm
    Cheryl

    I believe that if you dillute Perceptol 1+3 there will not be a speed loss (this is true with Microdol-X).
    Not so fine grained, but with LF this may not matter.

    Jorge O
     
  4. Cheryl Jacobs

    Cheryl Jacobs Member

    Messages:
    1,717
    Joined:
    Jun 10, 2003
    Location:
    Denver, Colo
    Shooter:
    Medium Format
    Thanks, Jorge and David. I did go ahead and try it, and two of the three negs look pretty good! I'm doing some more developing today, and then will print a few frames to see how I'm doing. This is fun.