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  1. #1
    keithwms's Avatar
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    Aurora in the darkroom / stop flash

    Can't afford that winter trip to Iceland or Alaska? No worries, you can make a lovely little aurora at home.

    Here's my recipe.

    (1) Film developer, fairly strong e.g. 1+0 or 1+1. I'm using wd2d+ (10 mL part A, 10 mL part B + 500 mL water);
    (2) Stop bath, e.g. ilfostop, at 1+4 or so.

    In your darkroom, after your eyes have adjusted, pour some some (2) into (1). Oooh... :o

    Now, this is an effect that I saw very weakly a few times before whilst tray developing, but convinced myself that I was hallucinating. But today I decided to do an experiment. After noticing a few faint flashes (quarter second or so in duration) when putting freshly developed film into the stop bath, I thought at first that this must be something to do with the film, but then I splashed some stop bath into the developer bath and... nice big flash. So of course I slowly poured the two baths together in the dark and confirmed that you get a nice glowing, chemiluminescent bath.

    This latest observation of aurora stopealis was with wd2d+ developer and ilfostop. I dont know whether it will work with other developers- try and see for yourself! I may have seen it faintly before with other developers, but with the wd2d+ and ilfostop, the effect seems quite pronounced.

    P.S. The stop flash has no apparent ill effect on the film. Normally you may not see it, because you may be inclined to shake extra developer off the film before dunking it into stop bath... or you may simply use a warm water bath to stop.

    P.P.S. Explanations, anyone? Points will be awarded for the most exotic explanation.
    Last edited by keithwms; 06-15-2008 at 09:11 PM. Click to view previous post history.
    "Only dead fish follow the stream"

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  2. #2

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    Quote Originally Posted by keithwms View Post
    P.P.S. Explanations, anyone? Points will be awarded for the most exotic explanation.
    Wd2d+ is reversed engineered alien technology. You're seeing energy leaking from another dimension into ours as the Wd2d+ is neutralized.

    Sounds pretty cool, I'll have to check this out.

  3. #3
    TheFlyingCamera's Avatar
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    You must have previously used the same tanks for developing infrared film, and it is just residual infrared leaking out and contaminating the chemistry (I wish this were totally a joke, but there is a well-known photographer who has stated in her book on infrared and handcoloring and other alternative techniques that infrared will contaminate the developing container, so you need to use a dedicated film developing tank to process IR).

  4. #4
    keithwms's Avatar
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    Three points to Kirk:

    +1 aliens
    +1 other dimensions
    +1 inter-dimensional energy leakage

    Grand score of 3, hard to beat. Alas, my own explanation only scores 2 points.
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  5. #5
    keithwms's Avatar
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    One measly point to Scott, for proposing cross-contamination from IR films. C'mon Scott, Kirk set the bar higher than that You would have scored two points if you'd used the term "infrared energy beams."
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    ok- how about infrared protoplasm cross-contamination? Either that, or else the old standby:

    Could it be...SATAN?

  7. #7
    keithwms's Avatar
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    Extra point to Scott for turning this into a moral issue.
    "Only dead fish follow the stream"

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  8. #8
    Ole
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    I'll hold off on the scientific explanation a while longer, I think...

    Maybe it's the "+" flashing off?
    -- Ole Tjugen, Luddite Elitist
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  9. #9
    keithwms's Avatar
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    Ole, I am disappointed that you didn't invoke something nuclear.

    -1 points.
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  10. #10
    Ole
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    I didn't use the word "proton", but I thought that was implicit in the case under discussion anyway?
    -- Ole Tjugen, Luddite Elitist
    Norway

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