Polarizer

Eldar said:
A more expensive alternative is the B+W XS-Pro MRC Nano, but I do not know what the extra dollars are providing.
neuroanatomist said:
The extra dollars get you the Nano coating (tougher outer layer), brass instead of aluminum, and a slightly thinner filter (4mm vs. 5mm).
indeed those are some very fine filters, if you have money and want quality stuff, then don't hesitate and go for it ;)
 
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My tipp:
  • Buy a filter with an good coating. A nano coating e.g. is easier to clean, and more scratch-resistant. And has (advertised) an better optical quality
  • Slim version if used with wideangle
  • Look for an high transmission filter (like from Heliopan), as they are not so dark. Lesser light is "swallowed" by the filter at the same polarisation effect, so the lens is faster

e.g.: Heliopan High Transmission Polfilter circ. SH-PMC
 
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