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  1. #1
    Chris Nielsen's Avatar
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    Skylight filter question

    Hi all

    I've been given a skylight filter, a 77mm Hoya 1A, and I was wondering:

    1) What's it for?? Is there any point using it?
    2) Why is it brown coloured?? Only slightly, if you put a piece of white paper behind it looks distinctly brown

    Cheers!

  2. #2

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    In a way, it can work as a UV filter, but it's not as effective. It's mostly useful to give a bit of warmth to reduce blue casts, especially in shadows.

  3. #3
    bsdunek's Avatar
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    Quote Originally Posted by Anon Ymous View Post
    In a way, it can work as a UV filter, but it's not as effective. It's mostly useful to give a bit of warmth to reduce blue casts, especially in shadows.
    Yes, especially if you use Ektachrome. Winter scenes are often blue and the skylight will help.
    Bruce

    Moma don't take my Kodachrome away!
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    BruceCSdunekPhotography.zenfolio.com

  4. #4

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    I think it is useful. Somewhat warmer effect for winter scenes. If it's free what the hell, use it.

    Jeff

  5. #5
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    Yep, I tend to agree with the above comments. They do have a slight impact with color film, and there are certainly times when they can improve the results in the right conditions. Some people poo-poo putting anything so simple in front of the lens (UV, skylight, etc), but I've had some fantastic results from lenses that have severe separation, fungus, and other problems on the front element, so I find it difficult to believe that something like this would degrade an image so much as to override the intended effects. Take some shots of the same setting with and without it so you have a side-by-side comparison of the results and then you'll have a good idea when it works and when it doesn't...

    - Randy

  6. #6
    fotch's Avatar
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    Lens protector.
    Items for sale or trade at www.Camera35.com

  7. #7

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    Quote Originally Posted by Anon Ymous View Post
    In a way, it can work as a UV filter, but it's not as effective.
    As an UV filter, it is every bit as effective as an 'UV-only' filter.
    It just ads a tiny bit of warming.

  8. #8

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    Quote Originally Posted by Q.G. View Post
    As an UV filter, it is every bit as effective as an 'UV-only' filter.
    It just ads a tiny bit of warming.
    I've seen some transmittance curves and there's a clear difference. Of course, not all skylight filters are the same, so some might be every bit as effective.

  9. #9

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    If you are not using colour it is as good as a UV, it will cut more blue (generically), there is a 1b as well I think.

    Noel

  10. #10
    Chris Nielsen's Avatar
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    Right, I get it now.. Thanks chaps!

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