Sigma 100-1000mm!

Them's some serious resolution on target there.

I'd imagine the E-P1 doesn't handle all that well with that honkin' beast, though.

I have thought about getting the EOS->m4/3 adapter myself, though mainly to mount my other manual focus lenses that I already have EOS adapters for...and to mount my 70-200 f/4 IS for some long range fun.

would that one be called the megama?

Whoa imagine that with a 2x tele-converter! Show us some shots of the moon

Put on two 2x t-cons, it shouldn't matter what aperture it comes out to, it's got contrast AF. (Might be a bit tough though)

What is that attached to the end of the lens on the right hand side?

j/k, but I swear it looks out of place on such a honkin large piece of glass.