gigabit film revisited?

Discussion in '35mm Cameras' started by HvdV, Dec 6, 2004.

  1. HvdV

    HvdV Guest

    Hi all,

    After the dying out of the tread on gigabit film this summer, did anyone test
    it any further? In particular, I'm interested in images of test charts.
    Is it usable in practice or to exotic to be of real value?

    See: http://www.gigabitfilm.de/

    Thanks, Hans
     
    HvdV, Dec 6, 2004
    #1
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  2. Martin Riddle, Dec 7, 2004
    #2
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  3. HvdV

    Tom Hudson Guest

    So, 400 line-pairs per mm - does that equate to 1600 dots per millimeter?
    Presumably to resolve line-pairs you'd have a dot per line and a dot per
    space? Or am I misunderstanding the measure and it's 800 dots per
    millimeter?

    Massive resolution either way though, very impressive.

    Thanks,

    Tom
     
    Tom Hudson, Dec 7, 2004
    #3
  4. The line pair is one black line and one white line so 400 line pairs is
    800 pixels for a black and white CCD or a Foveon color sensor.
     
    bob.kirkpatrick, Dec 7, 2004
    #4
  5. The line pair is one black line and one white line so 400 line pairs is
    800 pixels for a black and white CCD or a Foveon color sensor.
     
    bob.kirkpatrick, Dec 7, 2004
    #5
  6. HvdV

    MXP Guest

    The new Gigabitfilm I purchased had a much better "user manual" than the
    first one....
    which was only in german language. If you follow the description you get
    very good
    results. There are a lot of information in the "user manual" included in
    each fim box.
    Fixing the film is very important (fix time only about 20 sec.). Mixing the
    developer and
    using it about 10 min. after. It is recommened to load the film before
    mixing the developer.
    Always insert the film in the camera in shadow is very important as the
    light runs through
    the film as the film base is clear. There are many other such impotant
    things to remember.
    If you do that you will get very good results. You will se no grains in your
    enlargements.
    It is funny to use a x15 loupe at the final picture (e.g. 20x30cm) and then
    just see more details.

    Max
     
    MXP, Dec 8, 2004
    #6
  7. HvdV

    westin Guest

    Might Carl Zeiss have some self-interest in showing that their
    lenses can record *something* at 400 cycles/mm? They are selling
    against equipment that sells for less, and I suspect that they
    are trying to retain some shreds of the German mystique. Not to
    mention claiming bragging rights over Leica :).

    Anyway, I can't see an MTF chart anywhere on their site. Is it there?
     
    westin, Dec 10, 2004
    #7
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