Olympus E-P3 vs E-PM2. The Olympus PEN E-P3 and the Olympus PEN E-PM2 are two digital cameras that were officially introduced, respectively, in June 2011 and September 2012. Both the E-P3 and the E-PM2 are mirrorless interchangeable lens cameras that are equipped with a Four Thirds sensor. The E-P3 has a resolution of 12.2 megapixels, whereas ... This is a website that introduces Olympus Compact System Camera OLYMPUS PEN E-PM2. The Olympus PEN E-PM2 is all the proof you need that small and stylish can deliver impressive images. This compact technological wonder features an expansive 16-megapixel Live MOS sensor and TruePic VI image processor for powerfully vivid images that rival the quality of an SLR. What are the main features of the E-PM2? The OLYMPUS PEN E-PM2 is tailor-made for people who live active lives online and offline. It blends the high-quality imaging of a digital single-lens reflex (DSLR) camera with High Definition (HD) video capture, stereo Linear PCM audio recording and creative in-camera multimedia tools into an ultra-compact and stylish body.