If you use filters on your camera, this can have an effect on the white balance, depending on the filter type.
Polarizers are neutral – they don’t change the color balance, only the depth of color. Warm-up or other color-adjusting filters will, of course, change the color of the light.
The thing to make sure of here is that you don’t leave the camera set to auto white balance, because it will simply attempt to compensate for the changed light color.
Always choose an appropriate white balance preset before using a colored filter. One interesting alternative to a ‘straight’ colored filter is to use a colored graduate. This will add a color to the sky without changing the foreground colors.
A blue grad can add a sunny feel to an overcast day, while a yellow/orange grad can add drama to a stormy sky. With these, it’s wise to take your meter reading before you fit the filter.
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