how does older Polaroid camera film work?

Discussion in 'Photography' started by Jason Mozilla, Feb 9, 2009.

  1. I'm not talking about the new films that are now discontinued (such as
    Polaroid 600), I am wondering how the older "peel apart" films work. With
    the 600, the picture pops out and starts developing immediately. After a
    while, it's ready. But how does it differ from the older peel apart film?
    Do you physically have to separate the film after it exits the camera?
    Anything else required for a developed picture?

    Thanks,
    Jason
     
    Jason Mozilla, Feb 9, 2009
    #1
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  2. Jason Mozilla

    Paul Furman Guest

    The peel-apart type: you have to wait some specific time before peeling,
    like a couple minutes. It opens up fresh & tacky. The SX70 type is
    sandwiched behind a plastic sheet and develops over that minute or so.
    It remains soft & can be squished around in the pack with your fingers
    for a while.
     
    Paul Furman, Feb 9, 2009
    #2
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  3. Jason Mozilla

    mcescher Guest

    My father worked at a newspaper office. They got one of those "very
    old" cameras and that coating stuff smelled HORRIBLE.
    Good times....

    Chris M.
     
    mcescher, Feb 9, 2009
    #3
  4. Jason Mozilla

    trouble Guest

    You can easily look this up.
    The developer for the black and white film, which I believe was a
    conventional emulsion, freed the developed silver which migrated upward to
    the tightly sandwiched paper.
    The black and white prints needed a coater applied to prevent early fading
    and bronzing. Yes, the coater smelled bad and stuck to your fingers.
    All instant film processes require diffusion of silver or pigments upward.
    With the upward movement there is an inevitable tendency of the imaging
    material to diffuse outward as well and, with color processes, some
    unpredictable mixing effects among the many layers.
    Because the diffusion process has uncontrollable variables Polaroid images
    are all unique. Two images taken on a tripod mounted camera of the same
    stationary object are not identical.
    There is a pastel softness to the peel apart color Polaroid materials which
    can be quite lovely, especially for portraits, but will now be a forever
    lost medium.
    Kodachrome and its complex development process are child's play compared to
    the complexity of the Polaroid peel-apart color process.
     
    trouble, Feb 9, 2009
    #4
  5. Jason Mozilla

    Gary Edstrom Guest

    Back around 1978 I was working in the Engineering department of a small
    company in Pasadena. We had a special Polaroid camera that fit over the
    face of an oscilloscope. You took pictures of waveforms of interest and
    then coated the pictures and stapled them into your engineering
    notebook. What a hassle! But that was the only way we had to make a
    permanent record at the time.

    I still have the Polaroid adapter for my 4x5 view camera. I'll bet I
    haven't used it in 20 years! I need to put my 4x5 up for sale on Ebay.
    I haven't used it for any purpose in almost 9 years. It just sits there
    gathering dust.

    Gary
     
    Gary Edstrom, Feb 9, 2009
    #5
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