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Thread: Type 79 Green Only

  1. #1

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    Type 79 Green Only

    Just tried some Type 79. It is monochromatic; green only. Exposure is essentially OK, just only got green. F32 @ 1/2s. Reciprocity graph looks like there may be some color shift, but this is really severe with no evidence of any other color. It was developed (and shot) at room temp.

    Anybody have any ideas what has happened here? The holder has been used with type 55 (successfully) and both chemical packets appear to have been popped correctly.

  2. #2
    wfwhitaker
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    Type 79 Green Only

    Paul,

    Forgive my asking, but was there by any chance a green filter on the lens?

    Regards,

  3. #3

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    Type 79 Green Only

    Heh, no green filter. I don't -- in fact -- currently have any way to actually mount a filter on the lens.

  4. #4
    wfwhitaker
    Guest

    Type 79 Green Only

    Sorry Paul; had to eliminate the obvious. If it happens with more than one exposure, I'd call Polaroid.

    Best,

  5. #5
    Tracy Storer's Avatar
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    Type 79 Green Only

    What was your light source and how long did you process? Film fresh or short/out of date? With your half second exposure you shouldn't have gotten into much color shift-but it will happen with longer exposures.(more than a couple seconds) Any chance you could pop up a low res. scan?
    Tracy Storer
    Mammoth Camera Company tm
    www.mammothcamera.com

  6. #6

    Type 79 Green Only

    Paul,

    I sentu a private e=mail concerning the green film. One question were you shooting under flouresent lights? they will flip the film green.

    Bill Jefferson

  7. #7
    Ted Harris's Avatar
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    Type 79 Green Only

    Another wacko possibility, are you sure it was T79 and not T59? T59 will go toward green and get greener and greener at speeds slower than 1/125.

  8. #8

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    Type 79 Green Only

    Let see...I obviously should have given more details

    Box says type 79, sleeves say Polacolor Pro 100 Best before date is Nov 04 Shot was outdoors (although I was indoors, but shooting though a open patio door...don't ask ... OK, trying to get a feel for snowstorm exposure before I headed out and also to give type 79 a swing). Processing was 120 seconds, temp was 20 degrees C. I did 2 exposures, same result with both.

    I will see if I can get my butt into gear enough to scan one of them.

  9. #9

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    Type 79 Green Only

    A reasonably representative scan (far from perfect): http://homepage.mac.com/paulkierstead/tmp/greenT79.jpg

    Please excuse the subject matter

    The house in the background is very brown.

    I am pretty sure I am doing something wrong or vastly underestimating the reprocity effects; I had another box, different vendor, different batch (probably, Oct 04 expiry this time) and basically the same problem. Perhaps I should try an exposure with strobes.

  10. #10
    Whatever David A. Goldfarb's Avatar
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    Type 79 Green Only

    Try under different lighting conditions. If it was cloudy outside, you could have had some excess blue, and then maybe a long exposure could cause reciprocity problems.

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