P3D Pola

[Bob_Maxey@xxxxxxxxxxxx]

>>   I'm surprised no one has mentioned that the deep deep blue skies one
gets
>>from using polarizers is not a guaranteed phenomenon.  The blue sky
"emits"
>>linearly polarized light in what would best be described as a "cone"
whose apex
>>originates at the sun.  If you look at the sky with a polarizing filter
(with the sun
>>at your back) you will only notice the effect of the polarizer in the sky
that is to
>>your left, right and above.  You won't get much of anything in the
direction the sun
>>is "pointing" or if you look in the direction of the sun.  But OH BOY
what an effect
>>it has in the right directions and when there are the right kind of
clouds in the sky!
>>
>>   Also, I haven't heard anyone mention the benefits of using a polarizer
around
>>pavement (makes it jet black or shiny glare), or around glass on
buildings and
>>automobiles (takes the glare right off of the glass!), on water (you can
often see
>>to the bottom of a body of water where you couldn't before because of the
glare
>>and sky), and lots and lots of other places.


Good point. Polarizers do not always work in all lighting situations. That
is one reason Seaton Rochwite added a filter to the viewfinder as well - so
you can visually determin the effect the filter has on the scene. Colors
also become brighter and there is more detail in the images when glare is
removed. BTW: Try combining a polarizer with a red filter, and your clouds
will fill a dark sky. Very Dramatic.

RM



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