Results 1 to 4 of 4

Thread: Scratch on negatives - what went wrong?

  1. #1
    Thomas
    Join Date
    Apr 2007
    Location
    Bielefeld and Hamburg, Germany
    Posts
    196

    Scratch on negatives - what went wrong?

    A question to all the experts here. I just developed and scanned a batch of negatives, and quite a few have long thin scratches across the negative. It looks like this (scanned as positive):



    This is the first time that I see these kind of scratches in so many negs. What did I do wrong?

    The negs are TMAX 400 and they were loaded in Grafmatic holders, developed in Jobo 2500 tubes. That is my normal procedure. What I did different this time: the negs are from a longer trip and I unloaded the exposed negs from the holder and stored them in an empty sheet film box for the trip home (no x-ray involved).

    I guess the scratches must be related to the unloading and storing the sheets in the film box. I don't think it is a faulty Grafmatic because the scratches are visible on sheets from more than one holder.

    Any suggestions how I can avoid this in the future?

    Thanks in advance

  2. #2

    Join Date
    Feb 2001
    Location
    Los Angeles
    Posts
    1,799

    Re: Scratch on negatives - what went wrong?

    Thomas: It is surprisingly hard to scratch dry film, so pretty unlikely that this could result from loading the grafmatic or taking the film out and putting it in a box. A grafmatic scratch (I've never had one) would result from shuffling the septums and wouldn't be diagonal like this. I think it has something to do with handling wet film, but since I only use trays, can't comment on a Jobo issue.

  3. #3
    ic-racer's Avatar
    Join Date
    Feb 2007
    Posts
    3,983

    Re: Scratch on negatives - what went wrong?

    Reversing it like that makes it more difficult to figure out. But if I can imagine your negative it is mostly clear with a black scratch across it. In that case it would be a scratch in the base side.

  4. #4

    Join Date
    Jan 2007
    Location
    Minneapolis, MN
    Posts
    1,255

    Re: Scratch on negatives - what went wrong?

    Check your Graphmatic and your developing setup for burrs that could scratch the surface.

Similar Threads

  1. What is your method for making digital negatives?
    By Larry McNeil in forum Digital Processing
    Replies: 43
    Last Post: 22-Mar-2013, 06:08
  2. Cleaning wet-mounted negatives in scanning?
    By sanking in forum Digital Hardware
    Replies: 8
    Last Post: 6-Jun-2006, 18:42
  3. TMAX RS vs Pyrocat HD Negatives and POP
    By Michael Heald in forum Darkroom: Film, Processing & Printing
    Replies: 6
    Last Post: 26-Nov-2005, 09:01
  4. Paper Negatives?
    By Emile J Schwarz in forum Darkroom: Film, Processing & Printing
    Replies: 4
    Last Post: 2-Sep-2000, 13:34
  5. Washing of 4x5 negatives
    By Robert Ruderman in forum Darkroom: Film, Processing & Printing
    Replies: 4
    Last Post: 24-Nov-1998, 16:33

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
  •