QUOTE(ojtee @ Jan 26 2012, 03:06 PM)
I read somewhere that some B+W filters were made from alloy for the asian market, not sure if it's true or not coz the brass ones were relatively more expensive and that's the reason B+W came up with the alloy rings instead of the brass ones. IIRC it was dpreview.com
Note about the alloy rings is that over time, the alloy thread 'melts' into the lens thread making it extremely difficult to remove, and only way is to practically destroy the filter to get it removed.
QUOTE(Irbean @ Jan 26 2012, 06:16 PM)
I think it refers to the F-Pro and XS-Pro. Please correct me if im wrong, coz both are still genuine. Only the ring materials are different, and thickness, the glass is just the same.
Added on January 26, 2012, 6:18 pmnah, not really. there's also few photog which didnt bother what filter they use, chepo or expensive, even didnt use at all. Same goes to Drybox, buy chepo one, or DIY one, or even only use silica gel.
But then ask yourself, spends thousand on the lens, y not spend some for the best filter as well as the best drybox.
BTW it depends on the individuals itself, there no right or wrong.
Yeap, the F-Pro has two different thread,
one is alloy, one is brass.
but now the XS-Pro all are using Brass only imo.