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Thread: Depth to Septem on YOUR 14X17" film holders

  1. #1
    Tin Can's Avatar
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    Depth to Septem on YOUR 14X17" film holders

    I am back to working on my 14X17 studio camera

    This webpage is often quoted and described as wrong too!

    http://home.earthlink.net/~eahoo/page8/filmhold.html

    ULF film holders vary

    What is this one dimension on yours?
    sin eater

  2. #2
    Michael Jones's Avatar
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    Re: Depth to Septem on YOUR 14X17" film holders

    14x17 holders should not vary. There is an ANSi standard for them and that is a familiar size in the medical community.Of course, "should" is the operative word...

    Don't forget this discussion:

    https://www.largeformatphotography.i...eems-odd/page3

    Good luck!

    Mike
    “You can’t have everything. Where would you put it?”

  3. #3
    Tin Can's Avatar
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    Re: Depth to Septem on YOUR 14X17" film holders

    Thank you Michael!

    I am still interested in variations as there seems to be many over the last 150 years

    According to my new depth micrometer, my medical 14X17 X-ray holders are T= 0.30" and that is significant to 0.01 not 0.001"

    I have a few 11X14 film holders that vary 'deeply'!

    Shortly I will test my 11X14 Levy Copy Camera which has adjustable camera GG with a calibrated lever. T for that is 0.75" and can change T range by how I use it's massive holders

    Quote Originally Posted by Michael Jones View Post
    14x17 holders should not vary. There is an ANSi standard for them and that is a familiar size in the medical community.Of course, "should" is the operative word...

    Don't forget this discussion:

    https://www.largeformatphotography.i...eems-odd/page3

    Good luck!

    Mike
    sin eater

  4. #4

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    Re: Depth to Septem on YOUR 14X17" film holders

    I keep reading this as " Death to September".
    Not to be pedantic, but it is "Septum".
    Carry on.

  5. #5
    Tin Can's Avatar
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    Re: Depth to Septem on YOUR 14X17" film holders

    Only Mods can adjust titles

    Thank you!

    Quote Originally Posted by Dugan View Post
    I keep reading this as " Death to September".
    Not to be pedantic, but it is "Septum".
    Carry on.
    sin eater

  6. #6

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    Re: Depth to Septem on YOUR 14X17" film holders

    Randy,

    Different vintage and different format of holder, but my two 8x20 (using my digital vernier, if that is not a contradiction) is: 0.434" and 0.456" on the one, and 0.414" and 0.442" on the other measured at the edge.

    The two wooden holders are for a 8x20 Korona and likely original, implying built in late 1920s to early 1930s.

    Hope that is useful, and good luck with your research,

    Len

  7. #7
    Tin Can's Avatar
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    Re: Depth to Septem on YOUR 14X17" film holders

    Thanks Len!

    I bought a large base Digital depth/height gauge that is easier to use than a normal vernier slide caliper

    Soon I will measure 7X17 Korona. One OE film holder and 2 S&S exact copies

    Here are Richard Ritter specs as measured by him, from his website, http://www.lg4mat.net/FilmHolderSpects.html Great data!

    Sometime ago RR made me five 11X14 film holders that are excellent and fit his custom back made at the same time.
    sin eater

  8. #8

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    Re: Depth to Septem on YOUR 14X17" film holders

    Randy,

    Certainly the right tools make the job easier and does the job better (more accurate in this requirement).

    As well as not having a height gauge, even if given one, would have no place to set the granite block to use it on...

    The digital vernier is just a handy all around tool, but does have its limitations, especially in my hands...

    Good tools can make a different, but outcomes are also dependent upon the skills of the individual wielding them.

    Best wishes,

    Len

  9. #9
    Tracy Storer's Avatar
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    Re: Depth to Septem on YOUR 14X17" film holders

    I have two separate types of 14"x17" holders.

    Measurements are only SO accurate, since the septums do flex. With that in mind, I took my measurements around the edges where the septums are let into the dados in the side rails.

    Brubaker, made to fit an old ROC Carlton T= 0.315"

    S&S, ANSI (more or less, they agreed with the Fidelity ones I once had) T= 0.339"

    Both types are basically the same width, but the end flap is wider on the older style holders and the lock-rib location is different, nearly an inch lower (closer to the film gate) on the older style ones.

    EDIT: Measurements and notes above.
    Last edited by Tracy Storer; 9-Jan-2020 at 13:20. Reason: added info.
    Tracy Storer
    Mammoth Camera Company tm
    www.mammothcamera.com

  10. #10
    Michael Jones's Avatar
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    Re: Depth to Septem on YOUR 14X17" film holders

    Randy:

    You may want to review Richard Ritter's page on dimensions as well.:

    http://www.lg4mat.net/FilmHolderSpects.html

    Good luck.

    Mike
    “You can’t have everything. Where would you put it?”

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