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Thread: Kodak OC safelight filters

  1. #1

    Join Date
    Feb 2013
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    332

    Kodak OC safelight filters

    Since the 5.5 inch round ones are now $92 from B & H, I've been trying to figure out a work-a-round. Does anybody know the spectral response curve of the OC filter so I can see if Rosco has anything that might work ?

  2. #2

    Join Date
    Jul 2007
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    near Seattle, WA
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  3. #3

    Join Date
    Dec 1999
    Location
    Forest Grove, Ore.
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    4,675

    Re: Kodak OC safelight filters

    There are a ton of these available used on EBay.

    But in fact, I was advised advised against using them by John Wimberley. So instead, I've installed #1 Red.

  4. #4
    adelorenzo's Avatar
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    Dec 2012
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    Whitehorse, Yukon
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    457

    Re: Kodak OC safelight filters

    I use these ones that sell new for the equivalent of about $30 USD. I'm sure someone in the USA sells them as well.

    http://store.khbphotografix.com/Prem...afelights.html

  5. #5
    Eric Woodbury
    Join Date
    Dec 2003
    Posts
    1,637

    Re: Kodak OC safelight filters

    I'm using these in either Amber or Red with no filter.

    https://www.superbrightleds.com/more...60-degree/440/
    my picture blog
    ejwoodbury.blogspot.com

  6. #6

    Re: Kodak OC safelight filters

    Quote Originally Posted by Eric Woodbury View Post
    I'm using these in either Amber or Red with no filter.

    https://www.superbrightleds.com/more...60-degree/440/
    According the chart it looks like the amber's have little spikeys all the way down the spectrum. You are not having any fogging problems?
    --- Steve from Missouri ---

  7. #7
    Eric Woodbury
    Join Date
    Dec 2003
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    1,637

    Re: Kodak OC safelight filters

    No fog in the darkroom. I keep that outside.

    The spectrum for yellow appears noisy. Not sure why that would be. Even if real, very few peaks to the left with very little area under the peaks. The peaks or "spikeys" to the right don't matter. That is to the red end of things and paper is not sensitive there.

    That said, I have 2 amber lamps and 4 red lamps. I prefer the reds since they work with more different kinds of emulsions and thus I need not worry about fogging even with ortho or the Russian paper. Finally, the total power is lower with LEDs (almost all the lights in my DR are LEDs) and the load on my A/C is lower. I like electricity but hate waste.
    my picture blog
    ejwoodbury.blogspot.com

  8. #8

    Re: Kodak OC safelight filters

    Pretty cool. You could wire up light everywhere you need it, not just centrally.
    --- Steve from Missouri ---

  9. #9
    Tin Can's Avatar
    Join Date
    Dec 2011
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    22,386

    Re: Kodak OC safelight filters

    Quote Originally Posted by scheinfluger_77 View Post
    Pretty cool. You could wire up light everywhere you need it, not just centrally.
    That's what I do. I have 5 burning all the time.

    Then I turn off the white.
    Tin Can

  10. #10

    Join Date
    Feb 2013
    Posts
    332

    Re: Kodak OC safelight filters

    I do have some red filters I found for the safelights, but I much prefer the OC filters. The red and amber LED light look interesting and I might try them. I've always wondered-which kills the safelight filters, the light or the heat from the light bulbs. I tend to think it's the heat.

    I do think I'll be buying white LED bulbs for the normal room light....no afterglow problem-plus I want to keep heat down.

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