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Thread: Troubleshooting negatives

  1. #1

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    Troubleshooting negatives

    Hi I need little help troubleshooting a few negatives. They are C41 Kodak Ektar 100. They appear to have a brown stain/black stain upon scanning. Called the lab and they said that they didn't think it was the chemistry. They were suggesting light leak, but it seemed odd given the pattern, but I thought I could get your opinions.


    thanks

    -Deval

    on the other hand It seems I can only attach one...

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  2. #2

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    Re: Troubleshooting negatives

    ...Ektar was expired ?

  3. #3
    Format Omnivore Brian C. Miller's Avatar
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    Re: Troubleshooting negatives

    No way, that's chemical. Expired film never looks like that. At least, none of mine has. Change labs.

    BTW, where are you? Nearest hemisphere?

    If you're in the U.S., I recommend Praus Productions. Edgar Praus runs a great lab.
    "It's the way to educate your eyes. Stare. Pry, listen, eavesdrop. Die knowing something. You are not here long." - Walker Evans

  4. #4

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    Re: Troubleshooting negatives

    Ektar 100 wasn't released in LF until 2010, so it can't have been that expired.

    My guess would be to blame the chemistry as well. Mainly because of the weird colors too. Maybe they switched some chemicals? C-41 is pretty hard to do that wrong.
    The pattern looks almost a second exposure of OOF trees or something.

  5. #5

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    Re: Troubleshooting negatives

    Chemistry.

  6. #6
    ic-racer's Avatar
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    Re: Troubleshooting negatives

    What does the negative look like?

  7. #7

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    Re: Troubleshooting negatives

    Quote Originally Posted by ic-racer View Post
    What does the negative look like?
    I sent the negative back to the lab to be rewashed just in case it was a fixer issue which I read can cause "staining"

    I use Harmon's lab which has been spot on reliable for negatives for me for a while so I was surprised by this latest batch(not to mention relatively inexpensive at $1.60 for a C41 4x5 negative).
    I will pick up the negatives again tomorrow and rescan both as positive and negative. Hopefully whatever turns up may be helpful to others

    cheers
    -Deval

  8. #8

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    Re: Troubleshooting negatives

    Quote Originally Posted by Deval View Post
    I sent the negative back to the lab to be rewashed just in case it was a fixer issue which I read can cause "staining".
    I have to wonder if is a processing step or two before washing. Possibly re-fixing or some other step.

    I know the lab won't tell you but I'll bet if your film was messed up so would the sheets of film of other customers. I wonder if there is a way to find out how many others...

  9. #9
    dperez's Avatar
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    Re: Troubleshooting negatives

    I'm having a problem that has occurred in a couple of negatives. I suppose this is uneven development. I've darkened the image to enhance the problem area. This was developed in a unicolor/beseler print drum. Kodak Ektascan B/RA CRT X-Ray film, ISO 80, Pyrocat HD 1:1:100, 10:00 @ 20C, 200ml of solution. Maybe I should increase the amount of solution. Just worried that too much developer could also cause a problem when using drums. Any feedback would be appreciated.

    https://www.dropbox.com/s/uj2t72zg4r...Problem%29.jpg

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  10. #10
    Peter
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    Re: Troubleshooting negatives

    I use a Unicolor drum with 8oz (236ml) of solution. I pour it in quickly then give the drum vigorous rotational agitation for several seconds before placing the drum on the agitator.
    Also, give my film a 5 minute prewash using the agitator. How long are your development times?

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