I’ve been asked a couple times if the Hot Rod PL works with the Olympus Pen E-S1. The Hot Rod PL was designed to work with anything m4/3, but I never got to actually try it with the Olympus Pen E-S1…. The good news is that this person did!
He says it works great!
Check out the blog about it here…. It’s helpful if you are fluent in Nihongoga (Japanese)
http://funahara.com/blog/
and there is a picture gallery here:
http://twitpic.com/huir9
Go now!