According to Bryan's review there will be significant vignetting if you get a B+W UV filter with "normal thickness", so he recommended buying a slim version


But the problem with slim ones is that they do not have front threads, meaning no filter stacking (I don't really mind this) and no original lens cap (I do mind this one). B+W will supply you with a push on cap which according to many reports tends to fall off all the time. This really bugs me a lot.


For protection purposes, one guy from 16-35 II flickr group said that he got a slim version of B+W Clear filter, which does have front thread so the original lens cap will work but I was not able to locate the item either from B&H or B+W website. If such item exists I think I will get it.


Also if you have 16-35 you probably will do a lot of landscape shots, in which case a circular polarizer is necessary. Again normal thickness would cause vignetting, Byran recommend getting a slim one...


By the way, while you are looking at B+W filters, get the multi-coated version (MRC). I myself have not tested it but people say it is better. After all, you don't want to put cheap glass in front of the expensive ones, hence get the best you can.


Last but not least, in case you are really not sure if you should pay the premium for MRC, look online to see if there's any comparison done from those with MRC and those with non-MRC ones.





Cheers!