Yellow will very slightly darken the sky. Won't do much for skin tones. Mostly affects blue, but not by much.
As far as skin tones, I'd apply exposure compensation. Skin tones shouldn't be 18% gray, which is what your meter wants to average it's metering zone to.
A stop in either direction (for white or black people, for example) should do it, but you may need more. Or maybe add more contrast during printing. Bracket your exposures.
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.Filters do not lighten colors; they darken colors.
Yellow, being "minus blue", will darken blue while leaving red and green unchanged.
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.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".
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?