Page 1 of 3 123 LastLast
Results 1 to 10 of 24

Thread: Dark Clouds on Negative Development

  1. #1

    Join Date
    Jun 2019
    Posts
    10

    Dark Clouds on Negative Development

    Hello all:

    I am new to the forum and new to large-format. I am working with Ilford Delta 100 bw, 8x10 film.

    I am seeing these dark clouds upon developing. I even went so far as to mix a new batch of chemistry with great care. In the image I have attached I am exaggerating the contrast to show the problem. It's not as severe but it should not be there.

    I am hoping someone in the forum can help.

    Thank you all,

    Emile
    Attached Thumbnails Attached Thumbnails dark clouds.jpg  

  2. #2
    popdoc's Avatar
    Join Date
    Dec 2014
    Location
    Virginia Beach, VA
    Posts
    38

    Re: Dark Clouds on Negative Development

    I had something like this happen the first time I combined delta 400 and photographers formulary TF – 4 rapid fixer for the first time. The negatives did not clear completely using the “recommended“ time…

    Perhaps you are having a similar event?

    You can “finish the job“ by putting the negatives back in the fixer for another 5 to 10 minutes, and that may solve the problem. Wash as usual thereafter.

    Best of luck!

    Experience is quite a teacher...

    I am still learning, that’s for sure :-)


    Sent from my iPhone using Tapatalk

  3. #3

    Join Date
    May 2006
    Location
    north of the 49th
    Posts
    1,038

    Re: Dark Clouds on Negative Development

    how are you processing your film ? looks like developing issues to me. cld be poor fixing as well. does the negatve look slightly milky in the affected areas ?
    notch codes ? I only use one film...

  4. #4
    bob carnie's Avatar
    Join Date
    Jan 2004
    Location
    Toronto, Ontario,
    Posts
    4,464

    Re: Dark Clouds on Negative Development

    Insufficient agitation in the first 20 seconds of development... the single most common cause of this issue.

  5. #5

    Join Date
    Jul 2005
    Location
    Tel Aviv
    Posts
    382

    Re: Dark Clouds on Negative Development

    That looks like uneven development, how are you deving the negs?

  6. #6

    Join Date
    Jun 2019
    Posts
    10

    Re: Dark Clouds on Negative Development

    Hey all:

    Many thanks for your kind replies. I still need help and I have been unable to make any progress.

    I'll try and outline my dev process as simply as possible and then add comments in response to all the suggestions. Again, I really appreciate your notes and would appreciate any further insight.

    NOTE: The film I started seeing this problem with was Kodak TMAX 400 BW. However, I switched films and the image I added in my original post was from Ilford Delta 100 BW. So I am seeing the problem on two different types of films.

    First, my dev process:

    I am using all Sprint Systems Chemicals.

    • Starting out with a 1 min water soak.
    • Developer was "Sprint Systems of Photography FL020-R" diluted 1:9 as recommended by the manufacturer. Dev agitation for 7 mins to 8:30 mins depending on the temp.
    • 1 min Stop. Again, "Sprint Systems of Photography SB020-R" diluted 1:9 as recommended by the manufacturer.
    • 6 Mins in Fixer. "Sprint Systems of Photography FX004-R" diluted 2:8 as as recommended by the manufacturer.
    • 1 Min water bath.
    • 3 Mins Fixer Remover (Hypo) "Sprint Systems of Photography FR004-R " diluted 1:9 as recommended by the manufacturer.
    • 1 Min Photo Flo.
    • 15 Minutes drying time.

    I slowly worked to eliminate possible issues of light leaks, humidity, chemistry etc. But no luck. I even tried mixing fresh batches of chemicals and got the same result.

    I even refixed some of the negs, but no go.

    One big item I should mention: I have always been told to use 1-size up trays for dev; use 8x10 trays for 4x5 negs and use 11x14 trays for 8x10 negs etc. For various reasons I have always ignore this advice. I have processed hundreds of 4x5 negs in 4x5 trays without any issues. All these 8x10 negs were devloped in 8x10 trays. I mention this because I occasionally I see people pointing this out as a possible issue.

    Below please see my notes to all the helpful comments:

    >>G Benaim
    >>That looks like uneven development, how are you deving the negs?

    Please see above for details.

    >>bob carnie
    >>Insufficient agitation in the first 20 seconds of development... the single most common cause of this issue.

    In my case, I always start out with a full 30-sec constant agitation for each bath. Then slow down to a few seconds of agitation for every 30 secs. I am very consistent with this.

    >>Fred L
    >>how are you processing your film ? looks like developing issues to me. cld be poor fixing as well. does the negatve look slightly milky in the affected areas ?

    It's kind of milky, I guess. On the negative it looks more like a white cloud. Of course when made positive it turns black. Just to eliminate poor fixing, I refixed the negs by soaking in water for 4 mins then fix for 6, the 1 min water, 3 mins Hypo and 1 min Photo flo. None of that removed the problem.


    >>popdoc
    >>I had something like this happen the first time I combined delta 400 and photographers formulary TF – 4 rapid fixer for the first time. The negatives did not clear completely using the “recommended“ time…
    >>Perhaps you are having a similar event?
    >>You can “finish the job“ by putting the negatives back in the fixer for another 5 to 10 minutes, and that may solve the problem. Wash as usual thereafter.

    Tried that. Not for 10 minutes but for 6 and that seems to have made no difference.

  7. #7

    Join Date
    Jan 2012
    Location
    Beijing
    Posts
    158

    Re: Dark Clouds on Negative Development

    Last year (I think) someone had a similar issue that ended up being the darkslides were not opaque and causing light to bleed through. They were toyo holders if I am not mistaken. Long shot, but it could be this.

  8. #8

    Join Date
    Jun 2019
    Posts
    10

    Re: Dark Clouds on Negative Development

    Quote Originally Posted by blue4130 View Post
    Last year (I think) someone had a similar issue that ended up being the darkslides were not opaque and causing light to bleed through. They were toyo holders if I am not mistaken. Long shot, but it could be this.
    Thanks so much for your reply. I can test this by overlaying various scans as layers in Photoshop to spot any similarities. I've done that without results. Also, I have used most of these holders in a previous project, without any issues.

  9. #9

    Join Date
    Sep 1998
    Location
    Oregon and Austria
    Posts
    2,256

    Re: Dark Clouds on Negative Development

    If the "clouds" look milky on the film, as you say, then it is almost definitely underfixing. The fact that they didn't clear up when refixing points to inactive fixer. Test your fixer with a strip of film to see if the fixer clears film quickly. Fresh rapid fix should clear film in under one minute. If that's not the case, mix a new batch from a new bottle (your old concentrate is dead) or mix fresh powder and try again.

    Best,

    Doremus

  10. #10

    Join Date
    Jul 2007
    Location
    near Seattle, WA
    Posts
    892

    Re: Dark Clouds on Negative Development

    Two things come to mind. (1) The one minute water soak with constant agitation may be too short to ensure complete removal of the anti-halation layer on the base side of the film; I use 2 minutes and others have used even longer times. I'd think that any AH layer left on the negative should, in effect, increase the visible density and be seen as a lighter tone in the positive; although this would contradict what you've said is seen as a positive. Is your posted picture a negative or positive? (2) If that doesn't resolve the issue, then definitely change to an 11x14 (or larger) tray. Obviously, I'm groping at straws here.

    I think Doremus is closer to the solution, though.

Similar Threads

  1. Dark shade on negative
    By rpagliari in forum Darkroom: Film, Processing & Printing
    Replies: 20
    Last Post: 27-Jun-2019, 05:56
  2. Dark Spots on Negative
    By Justin Roxbrough in forum Darkroom: Film, Processing & Printing
    Replies: 6
    Last Post: 29-Aug-2018, 11:32
  3. Artifact (dark ray) on Negative
    By Tim Povlick in forum Cameras & Camera Accessories
    Replies: 25
    Last Post: 11-Oct-2011, 06:33
  4. clouds or sun with negative films
    By Bruce Watson in forum Style & Technique
    Replies: 11
    Last Post: 23-Dec-2006, 01:07
  5. Brush negative development
    By Lewis Lauring in forum Darkroom: Film, Processing & Printing
    Replies: 3
    Last Post: 25-Apr-2000, 19:46

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
  •