Went to TK and Cathay this morning. Budget around 120 and wanted to buy a CPL for landscape.
The sales guy at TK quite good, showed me a range of CPL from hoya, B+w etc. I previously owned a 52mm xspro B+W. Compared to the B+W CPL, noticed that the ring was not brass, but hard plastic and the glass is not glass but some sort of posh plastic.
Any ideas how come plastic more expensive then glass? What special properties does the new Nano versions have; Black box type.