Bill is correct. The polarization effect is strongest at 90 degrees
from the sun and non-existent at 180 degrees (ie, sun directly behind
you) Since a wide angle lens covers a much larger piece of the sky the
variation in polarization will be more noticeable. Some people don't
like it, some don't care.
Ken will likely be ill at the mention of Luminous Landscape but there's
a good, short tutorial here on the use of polarizers. It spends a fair
amount of time on the the use of polarizers with wide angle lenses
including warnings about vignetting and not to use them with panos.
<http://www.luminous-landscape.com/tutorials/polarizers.shtml>
Chuck Norcutt
On 3/3/2014 8:30 PM, NSURIT@xxxxxxx wrote:
> I would think it might have as much to do with angle of the light rays from
> the light source as related to the position of the camera. Bill Barber
>
>
> In a message dated 3/3/2014 7:04:18 P.M. Central Standard Time,
> bwhitmire@xxxxxxxxxxxxxx writes:
>
> Polarizers do better on narrower fields of view, I suspect because of the
> scattering of the light. Uniformity is hard to come by, at least with
> luminance, or luminosity.
>
--
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