I have B+W brand non-MRC yellow (022) and red (090) filters in 46mm that I don't really need. Both are in excellent condition, in the original plastic cases. I've never used them, it could be no one else has either. I could use a couple of filters in 40.5mm, definitely a yellow, the other color is negotiable. What have you got? Drop me an email (preferred) or a PM.