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  1. #1
    pstake's Avatar
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    No. 6 contrast filter

    Has anyone ever heard of one? As in, one step above grade 5, which I've always known as the most contrast available.

    I needed a #4 and #5, found three on ebay, #4, 5, and 6, see attached.

    Was this for some specific paper?

    I can't find any info about a No. 6 filter via Google.

    Click image for larger version. 

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  2. #2
    ic-racer's Avatar
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    A manufacturer can name filters them whatever they want. The established measure of contrast is ISO(R).

    For a manufacturer to sell a paper as grade 3 it has to have an ISO(R) between 80 and 95. However, VC filters have no such requirement ---- Taylor and Francis, The Variable Contrast Printing Manual

  3. #3
    Hexavalent's Avatar
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    I have a set of those same filters for the old Ilfospeed Multigrade II paper. "6" was very contrasty.
    - Ian

  4. #4
    Chris Lange's Avatar
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    They do provide a "5+" now...not sure how different from "6" it would be.
    See my work at my website CHRISTOPHER LANGE PHOTOGRAPHY

    or my snaps at my blog MINIMUM DENSITY
    --
    If you don't have it, then you don't have it.

  5. #5
    MattKing's Avatar
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    Is the #6 filter also known as the "Spinal Tap" filter?
    Matt

    “Photography is a complex and fluid medium, and its many factors are not applied in simple sequence. Rather, the process may be likened to the art of the juggler in keeping many balls in the air at one time!”

    Ansel Adams, from the introduction to The Negative - The New Ansel Adams Photography Series / Book 2

  6. #6
    RalphLambrecht's Avatar
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    Quote Originally Posted by pstake View Post
    Has anyone ever heard of one? As in, one step above grade 5, which I've always known as the most contrast available.

    I needed a #4 and #5, found three on ebay, #4, 5, and 6, see attached.

    Was this for some specific paper?

    I can't find any info about a No. 6 filter via Google.

    Click image for larger version. 

Name:	filters.JPG 
Views:	62 
Size:	191.8 KB 
ID:	76229
    filter numbers and ISOcontrast grades are not the same, unfortunately, but theoretically an ISOgrade 6 exists and can be reached with a tri-color -blue filter in combination with a very bright light source. Inever had a negative that needed such a high contrstbut tested tri-color filters fordual-filter printing.
    Regards

    Ralph W. Lambrecht
    www.darkroomagic.comrorrlambrec@ymail.com[/URL]
    www.waybeyondmonochrome.com

  7. #7
    eddie's Avatar
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    Quote Originally Posted by MattKing View Post
    Is the #6 filter also known as the "Spinal Tap" filter?
    I thought the same thing... "This filter goes to 11"...

  8. #8
    eddie's Avatar
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    Quote Originally Posted by ic-racer View Post
    A manufacturer can name filters them whatever they want.
    I once owned Ilford, Kodak, and Dupont filters. On the same paper, each brand's filter # printed differently. The higher the contrast #, the bigger the difference. They were closer in their low contrast #'s, but still slightly different. For awhile, I actually used the differences when looking for a little more nuance.

  9. #9
    pstake's Avatar
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    Thanks for the responses, everyone. I wish I could remember Spinal Tap well enough to get those references!

  10. #10

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    Quote Originally Posted by pstake View Post
    Thanks for the responses, everyone. I wish I could remember Spinal Tap well enough to get those references!
    http://www.youtube.com/watch?v=NrVCjnRdB_k

    Duncan

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