Comparison of Olympus OMD EM10 Mark IV (3MP) and Olympus OMD EM5 Mark III (4MP) on sensor size (2164mm diagonals), pixel pitch, pixel density and moreThe Olympus OMD EM10 Mark IV still has the same contrast detection autofocus on paper as its predecessor, EM10 Mark III, with 121 autofocus points According to Olympus, the algorithms have been improved to bring the performance closer to the phase detection systems that we find in the current EM5 and EM1 modelsOlympus OMD EM10 Mark IV Box contents BLS50 Rechargeable Lithium Ion Battery, F5AC USBAC Adapter, USB cable, shoulder strap, warranty card, instruction manual Other included items differ depending on the kit Om D E M10 Mark Iv Olympus Camera Review Mirrorless Light Intuitive Olympus om-d e-m10 mark iv dpreview