Smart! The Idea of EOS-M is to have a SMALL kit. Some posters here seems to be doing the opposite. They are building up a big system around the tiny EOS-M. If that is the case, they might as well bring their FF DSLR kit.I think I will hold off the EF-EF-M adapter.Amazon had it for $60 a few weeks back and I ordered but later canceled it. I can't ever see myself using the adapter - the whole idea (for me) of the M is that it's tiny. Adding the adapter and my L glass would make it ridiculous. I carry a 5DIII (or 1D X depending on the shoot) as a back up body, but for those who carry the M for that purpose, I could see the purpose of the adapter.