I have a credit that expires soon and was toying with the idea of putting it towards an inexpensive lens. I don't have anything in the super-telephoto range and it seems like m43 has some decently priced offerings in this area. The Panasonic 100-300 is about a half stop faster but the Olympus 75-300 II is smaller and lighter. It seems like they both get good reviews. I pretty much only use Olympus bodies so I am not sure how valuable the OIS would be for me. Has anyone tried both these lenses and could comment on them? Thanks!