In a premature launch, Olympus on Tuesday launched its third but potentially most significant digital PEN camera. The E-PL1 has the same 12.3-megapixel sensor as the E-P1 and E-P2 but improves on the earlier Micro Four Thirds cameras through a slew of major design changes. A pop-up flash is the most notable and saves photographers from having to give up flash either on the road or when using an optical viewfinder.
