Olympus OM-D E-M1 specification highlights:
16MP MOS Four Thirds format sensor with no low-pass filter
On-sensor phase detection elements
Twin control dials (front and rear) with '2x2' dual-mode option
'5-axis' image stabilization with automatic panning detection ('S-IS Auto')
ISO 'LOW' (100 equiv) - ISO 25,600
Up to 10fps continuous shooting (6.5 fps shooting with continuous AF)
1.04M-dot 3" LCD touchscreen display - tilts 80° upwards and 50° downwards
Electronic viewfinder: 2.36M-dot LCD, 0.74x magnification (equiv.), eye sensor
Built-in Wi-Fi for remote shooting and image transfer to smartphone or tablet
Dust, splash and freeze-proof (to -10 °C)
Gained over the E-M5
True Pic VII processor, with lens corrections
1/8000 sec top shutter speed, 1/320 sec flash sync
Built-in microphone socket (rather than optional accessory adapter)
Flash X-sync socket
Built-in Wi-Fi
Focus 'peaking' display
In-camera HDR blending (two modes), previewed in viewfinder
Four Thirds is dead. Long live Four Thirds.
As well as representing the highest-end Micro Four Thirds camera yet, the E-M1's role is also about offering continued support for users of the original Four Thirds SLR system. Olympus created some very nice Four Thirds lenses, but the company struggled to make enough impact in the SLR market to justify the cost of continuing development for both systems in parallel.