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  1. #1

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    Can someone put this in film terms

    From the MGIVRC data sheet


    The speed of MULTIGRADE IV RC depends on the
    filtration used during exposure. MULTIGRADE IV
    RC unfiltered, has a paper speed of ISO P500.
    Technological society has succeeded in multiplying the opportunities for pleasure, but it has great difficulty in generating joy. Pope Paul VI

    So, I think the "greats" were true to their visions, once their visions no longer sucked. Ralph Barker 12/2004

  2. #2

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    Quote Originally Posted by mark
    From the MGIVRC data sheet


    The speed of MULTIGRADE IV RC depends on the
    filtration used during exposure. MULTIGRADE IV
    RC unfiltered, has a paper speed of ISO P500.

    ISO paper speeds have no direct relation to film speeds.

  3. #3
    Bob F.'s Avatar
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    Just as there is an ISO standard for film speeds, there is also an ISO standard for paper speeds. Just don't ask me what that standard is (!) - no doubt it will be defined on the Web somewhere... ISO is the International Standards Organization.

    Cheers, Bob.

  4. #4

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    Thanks Jay and Bob.
    Technological society has succeeded in multiplying the opportunities for pleasure, but it has great difficulty in generating joy. Pope Paul VI

    So, I think the "greats" were true to their visions, once their visions no longer sucked. Ralph Barker 12/2004

  5. #5

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    I meter my MGIV at ISO 6 and have acceptable results without any filtration. on a pinhole with an fstop around f/345, focal length of 100mm on a 'sunny 16' exposure its normally around 1minute 30seconds.

    When putting a filter on it, I dont recall the exact numbers but I believe 0 - 3 all have a paper ISO around 200, and 4-5 are 100. Without a filter as mentioned its 500. Using these measures you can adjust your exposure accordingly, a #5 contrast filter puts the paper at 100 'iso' and a #2 puts it at 200 'iso' ..... at least in my experience doubling and halfing exposure has seemed to work just as it does with film ISO..
    "Where is beauty? Where I must will with my whole Will; where I will love and perish, that an image may not remain merely an image."

  6. #6

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    Thanks Christopher.
    Technological society has succeeded in multiplying the opportunities for pleasure, but it has great difficulty in generating joy. Pope Paul VI

    So, I think the "greats" were true to their visions, once their visions no longer sucked. Ralph Barker 12/2004



 

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