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  1. #1
    Flotsam's Avatar
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    Question about filtering Efke 50

    I'm going to be shooting some efke/adox 50 and would like to darken the sky. I understand that using a Red filter will affect my exposure due to the film's sensitivity. Does anyone have any information or experience using a Yellow or Orange filter with this film, or the 25 iso version of it?

    Maybe I should just work with a polarizer.
    That is called grain. It is supposed to be there.
    =Neal W.=

  2. #2
    c6h6o3's Avatar
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    Try a No. 15 Deep Yellow. You'll get a very creamy, neutral grey sky.

  3. #3

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    I would try 2 stops with a #15, 2 1/2 stops with a #21. I am not a user of this film so this is just a guess mon my part. Take an un filtered shot and a couple of shots using each filter and bracket. Keeps some notes and then come back and tell us what works.
    Claire (Ms Anne Thrope is in the darkroom)

  4. #4

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    Since both I believe are orthopanchromatic, I usually err on side of denser negative & add 3 stops of exposure for the orange filter. I'm still evaluating them vs Efke 100 for landscapes.
    van Huyck Photo
    "Progress is only a direction, and it's often the wrong direction"

  5. #5
    Flotsam's Avatar
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    I like Efke 100 very much. It has a much more conventional Red response than the slower films.
    That is called grain. It is supposed to be there.
    =Neal W.=

  6. #6

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    I was very disappointed with efke 50, it seened as though it was just as grainy as the 100. It seems as though it is the same emulsion with a different set of sensitizing dyes(just a guess, no facts here).
    Efke 25 is much much different.
    art is about managing compromise

  7. #7

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    Quote Originally Posted by Flotsam
    I'm going to be shooting some efke/adox 50 and would like to darken the sky. I understand that using a Red filter will affect my exposure due to the film's sensitivity. Does anyone have any information or experience using a Yellow or Orange filter with this film, or the 25 iso version of it?

    Maybe I should just work with a polarizer.
    Do consider getting a graduated red / yellow filter

  8. #8
    c6h6o3's Avatar
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    Quote Originally Posted by Flotsam
    I like Efke 100 very much. It has a much more conventional Red response than the slower films.
    I like the 50 a lot more, precisely because of the orthopanchromatic response.

  9. #9
    Thomas Bertilsson's Avatar
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    I tried some filtering with both 25 and 50, and their response was similar. I liked the 25 better, however. But red filter was inconsistent with normal exposure, which was confusing.
    I say a polarizing filter is a great idea. Yellow filter works, orange is OK, but requires quite a bit more exposure. Yellow gave me decent skies.
    Personally I like the Efke 100 best of the three, but am so tuned in on FP4 that I don't experiment with it much anymore.

    - Thom
    "Often moments come looking for us". - Robert Frank

    "Make good art!" - Neil Gaiman

    "...the heart and mind are the true lens of the camera". - Yousuf Karsh

  10. #10
    noseoil's Avatar
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    Efke 25 & 50, yellow. tim

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