Olympus set out plans on Thursday for a major firmware upgrade for all its PEN Micro Four Thirds cameras. The E-P1, E-P2 and newer E-PL1 will all get faster autofocusing in still photos, regardless of the lens. The older E-P1 and E-P2 will also get the E-PL1's faster continuous autofocusing during movie recording, but only for the long-ranged 14-140mm and wide-angle 9-18mm lenses.