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  1. #11

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    Depends on the specific film and complexion involved. For outdoor portraiture with TMax 100, for example, I like to carry along a light yellow-green filter. I will darken the sky a bit better, and not make
    light complexion look paste-like, like an orange filter would. However, a bit of green will accentuate
    freckles or zits or things like that. My favorite filter for this is Hoya XO.

  2. #12
    CBG
    CBG is offline

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    Quote Originally Posted by Leigh B View Post
    Filters do not lighten colors; they darken colors.

    Yellow, being "minus blue", will darken blue while leaving red and green unchanged.
    All true, until one applies a filter factor and adds exposure to compensate for the darkness of the filter. Once one adds the exposure compensation, the subject areas of the same color as the filter will lighten, neutrals will be largely unchanged, and sbject areas opposite to the color of the filter will be darkened.

    Quote Originally Posted by Leigh B View Post
    There may be some overall darkening due to inherent neutral density of the filter, but that's not color-dependent. This is the reason for compensating exposure by the "filter factor".
    The filter factor has to compensate for more than just the - usually - very slight built in neutral density. The manufacturer's recommended filter factor is always a compromise that attempts to retain the relative brightness of neutral surfaces.

    For example with, say, a strong red filter, it takes quite a bit of exposure to bump a middle gray back to middle gray, since one has lost almost all the blues and greens, and absent exposure compensation, neutrals will be dramatically darkened.

    The recommended factor is not an exact science since the color of the light incedent on the subject and the spectral sensitivity of the film all would ideally be part of the factor, and the filter manufaturer cannot anticipate all film choices and lighting conditions.

  3. #13

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    Something else to remember about a yellow, orange, or red filter in sunlight - whatever is not lit directly by the sun (in the shade, or shaded by objects, like the bigger person next to them) will be illuminated by the blue sky only (sometimes called "open shade" if nothing obstructs the object from the sky) and so the skin tones, lit by the blue-influenced illuminating light, may be a bit darker (or "dirtier") than might be expected with these warmer color filters. A fine point, granted, but something to consider.

  4. #14

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    Sep 2004
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    Good info I'v been asking this question also Thanks.

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