Dear Dan,

I have used both 72mm and 90mm on 617 (though not on this camera) and would be inclined to go for the longer version. Indeed I considered 110mm on 617, so I'll second Jim: 90mm at widest.

Consider buying a Fotoman finder before you buy a camera -- they are not all that expensive -- so that you can get a feel for these f.l.s before you buy.

Cheers,

Roger (www.rogerandfrances.com)