Guess why I don't need my 60mm B+W IR cut filter?
I won't gather any sympathy.. Moved to an M9.

Filter was on my Noctilux. No scratches on filter.
B+W top quality as can be expected.
Cost $139 new.
Will sell for $70 with S&H

Also have a 39mm Leica IR cut filter, $45 (was $120 new)