Polarizing filter for winter

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Peter - 28 Aug 2006 21:33 GMT

I have managed to make do without one this summer (doing post processing
instead), but after having viewed results with and without one with the
camera I have Canon S3 IS, I was curious about winter shots too.

Can anyone offer advice on using a polarizing filter with snow? would you
consider it essential?

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David H. Lipman - 28 Aug 2006 22:03 GMT

From: "Peter" <no@email.com>

| I have managed to make do without one this summer (doing post processing
| instead), but after having viewed results with and without one with the
| camera I have Canon S3 IS, I was curious about winter shots too.
|
| Can anyone offer advice on using a polarizing filter with snow? would you
| consider it essential?

Use it anytime you have light reflections.

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m Ransley - 29 Aug 2006 13:38 GMT

I would use it anytime you have sun and a blue sky, it will make the sky
more blue, reduce haze and strengthen colors. The only drawback is
darkening only a section of the sky but that depends on your position to
the sun

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dadiOH - 29 Aug 2006 14:34 GMT

> I have managed to make do without one this summer (doing post
> processing instead), but after having viewed results with and
[quoted text clipped - 3 lines]
> Can anyone offer advice on using a polarizing filter with snow?
> would you consider it essential?

A polaroid filter is good for two (and only two) things at anytime of
year...

1. Removing specular reflections (a "specular" reflection is one of
the light source). The light from those reflections is polarized and
that will only happen at around 30 degrees from the camera.

Normally, one wants to remove specular reflections to reveal what is
hidden by them and/or to increase the color saturation in the affected
area; however, if you remove the specular reflections from snow you
will be removing the "glisten" which - in this case - is desireable
IMO, YMMV.

2. Darkening the sky. Again, that will only occur when the light is
polarized and that polarization is at the maximum at the zenith...at
an angle that is 90 degrees from the sun to you to the sky. It will
do little or nothing elsewhere dependent upon how much off 90 degrees
the sky area is.

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