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Hi Doug
I used the Hoya CPL extensively when I used to do a lot of mountaineering in my younger days in the UK and Europe. The main usage was to darken the sky to an almost midnight blue, which then contrasted very well with fluffy white clouds and glaciers, snow fields, etc. The CPL was superior in this regard compared to the linear type; it gave much more control and a greater range of polarisation.
Unfortunately I never tried it on reflections. In terms of distant detail, back in the days of 35mm SLR's, the standard practice was to fit a UV filter to "cut distant haze" and protect the front element of the lens.
I’ll see if I can dig up my old collection of filters and take an image of reflections in glass to see if the CPL can “remove” them. I’ll post the results later.
Cheers
Dennis
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