Bob, does this mean that previously you held DarkPenguin in low esteem?
(Nearly) on this subject, is there any lubricant one can use to keep one's polarizer turning smoothly? As much as those B+H jobs cost (I had to buy a 95mm one!! Yikes!) they should twist themselves.
High esteem, now high regard as well!
One of the main reasons that I purposely buy B+W filters is because they have brass mounts that are not likely to seize. I still think that is valid.
I mounted this filter a few days ago outdoors - it was 20 degrees F at the time. All the brass in the world can't overcome differential expansion of dissimilar metals.
Learned a lesson today!