Olympus ended rumors Tuesday by trotting out its highest-end Micro Four Thirds camera to date. The OM-D is consciously styled after the classic OM-4 film camera but, in place of the mirrors and optical viewfinder, has a 1.44-megapixel electronic viewfinder instead. It's billed as one of the few mirrorless interchangeable lens cameras to have its EVF in a more natural position above the lens, rather than at the corner on a camera such as the Sony NEX-7.