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Thread: Amber Plexiglas for Wet Plate Dork Box?

  1. #1
    Mark Sawyer's Avatar
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    Amber Plexiglas for Wet Plate Dork Box?

    I'm building an all-plexiglass dark box for doing public demonstrations of tintypes and ambrotypes. Anyone have knowledge or thoughts as to whether this Amber plexi would be safe in average room light, or should I go with a darker red (harder to see through).

    https://www.eplastics.com/ACRY24220-250PM48X96

    "2422 amber plexiglass is 100% effective at blocking ultraviolet wavelengths. It cuts off light at the 540 wavelength and works great for UV curing."
    Attached Thumbnails Attached Thumbnails amber plexi.jpg  
    "I love my Verito lens, but I always have to sharpen everything in Photoshop..."

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    Resident Heretic Bruce Watson's Avatar
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    Re: Amber Plexiglas for Wet Plate Dork Box?

    Thread: Amber Plexiglas for Wet Plate Dork Box?

    Dork Box? ROFLMAO! I haven't laughed that hard in ages. Thanks.

    And sorry I can't help with your dark box problem. I'm just a photo dork, what can I say?

    Bruce Watson

  3. #3
    Mark Sawyer's Avatar
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    Re: Amber Plexiglas for Wet Plate Dork Box?

    I guess I should go back and edit that, but let's be honest... it fits!
    "I love my Verito lens, but I always have to sharpen everything in Photoshop..."

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    Foamer
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    Re: Amber Plexiglas for Wet Plate Dork Box?

    It needs to be dark orange amber, not yellow amber.
    Qui sedes ad dexteram Patris,
    miserere nobis.

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    Resident Heretic Bruce Watson's Avatar
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    Re: Amber Plexiglas for Wet Plate Dork Box?

    Quote Originally Posted by Mark Sawyer View Post
    I guess I should go back and edit that, but let's be honest... it fits!
    It fits me at least. And I'll bet a surprising number of us will admit to that also.

    Bruce Watson

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    Mark Sawyer's Avatar
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    Re: Amber Plexiglas for Wet Plate Dork Box?

    Quote Originally Posted by Two23 View Post
    It needs to be dark orange amber, not yellow amber.
    Been searching for an hour, the only transparent orange I can find is fluorescent, which won't block UV (if I understand correctly, it's hard to get much technical info). Hoping this one is dark enough, but it's hard to tell over the internet...
    Attached Thumbnails Attached Thumbnails Pic-ACRY24220_250PM48X96_media-1.jpg  
    "I love my Verito lens, but I always have to sharpen everything in Photoshop..."

  7. #7
    Mark Sawyer's Avatar
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    Re: Amber Plexiglas for Wet Plate Dork Box?

    But the spectral response looks good on paper...
    Attached Thumbnails Attached Thumbnails collodion-spectrum.jpg   Collodion,%20CdBR+KI,%20KI,%20CdBr.jpg   amber plexi.jpg  
    "I love my Verito lens, but I always have to sharpen everything in Photoshop..."

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    Re: Amber Plexiglas for Wet Plate Dork Box?

    Quote Originally Posted by Mark Sawyer View Post
    I'm building an all-plexiglass dark box for doing public demonstrations of tintypes and ambrotypes. Anyone have knowledge or thoughts as to whether this Amber plexi would be safe in average room light, or should I go with a darker red (harder to see through).

    https://www.eplastics.com/ACRY24220-250PM48X96

    "2422 amber plexiglass is 100% effective at blocking ultraviolet wavelengths. It cuts off light at the 540 wavelength and works great for UV curing."
    I don't remember the wavelength of the blue part of the visible spectrum, but I would check it. Ifmy memory is correct, it has bee a long times, wet p[late emulsions are also sensitive to blue light.

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    Mark Sawyer's Avatar
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    Re: Amber Plexiglas for Wet Plate Dork Box?

    Quote Originally Posted by Jim Noel View Post
    I don't remember the wavelength of the blue part of the visible spectrum, but I would check it. Ifmy memory is correct, it has bee a long times, wet p[late emulsions are also sensitive to blue light.
    Bet you were typing as I was posting my last reply. Yup, you can see the overlap in the first photo.
    "I love my Verito lens, but I always have to sharpen everything in Photoshop..."

  10. #10
    Foamer
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    Re: Amber Plexiglas for Wet Plate Dork Box?

    You could order one sheet. Place a Lane dry plate in a solid lightproof box with the amber sheet for the top. Take it out into the light for 15 minutes or so, then process the plate to see what it did.


    Kent in SD
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