I now have a dilemma about whether to order the new 100 - 400 lens. I already have a good copy of a Canon 100 - 400 and could just buy an adapter for my XT1. Of course I lose autofocus but I save $1900 (less the cost of the adapter). What makes it more of a dilemma is that both lens weigh about the same. I was hoping the Fuji would weigh a lot less than the Canon. Anyone else in the same quandary?