Folks, three quick questions: 1. What is the appropriate lens hood for an 35/f2 AF? Is it the HN-3? (Is there a complete list anywhere??) 2. Is there a cross reference of Nikon (and others) filter designations? I understand that an A2 is (more or less) equivalent to an 81a. How does a Tiffen 812 fit in? What's the equivalent to an A12 etc etc Additionally, somebodyt said that a B2 and a A2 would give a fairly neutral gray. Are there other combinations that complement each other? (Not that I want to do it, but it helps to know how you can get the same magnitude/effect in the other direction) 3. Using warming filters: when applying a Tiffen 812 (or other warming) filter to a pure white like a brides dress, does that cause severe color shifts? I mean: you want to apply a warming filter to skin tones, but would a pure white be messd up? Thanks, W/ Wieland Eckert AT&T Labs Research