I am considering sending a NEX 7 off to get it converted to IR. In the past, I have had all my IR gear to use 720nm, which produces pretty much b/w. The galleries and museums seem to like that, although I have never tried the 650nm or lower filters.
How difficult is it to go to pure b/w when you have one of these 600 +,-, cameras?
Not a big fan of the color IR, but would not mind trying it out.