P7700 OOC images with a Circular Polarizer

Isola Verde wrote:

Robert, thanks! We're on the little island of Ischia, near Naples - Italy, not Florida....

http://www.pbase.com/isolaverde/allaboutischia
For much of the year, no great need for a polariser here - but I like the way it contributed to improving the "with" photos... even if I don't really understand how? Certainly there can't be any polarised light for it to stop coming from those shadow areas.
The effect seems to have left the sky about the same, whilst allowing more (and warmer) exposure of the rest. It's now evening but, if we're lucky enough to see the sun again tomorrow, I'll repeat with a different metering pattern.
Peter

--
Peter - on the green island of Ischia
http://www.pbase.com/isolaverde/recisch