honestly.. I *do* have a B+W filter on it.. and all my filters are B+W..
the lens was purchased with the tiffen when the picture was taken... I didnlt say there's a B+W on there now because I just don't like the attitude over there.. it's akin to someone here buying VMR rep rims here and saying damn you got a 50K 3-series but but VMR's on? WTF, you ruined the car.. now that's stupid.
If I took two pictures with a tripod of the same thing, same settings only difference was to put a B+W filter vs. Tiffen or none or _insert brand_ and said pick the one that you like best.. No one will be able to tell me which was which.. or if there is even any difference in the pics at all!
I'm willing to bet money on that.