Olympus OM-D E-M1

The Olympus OM-D E-M1 Micro Four Thirds is a compact mirrorless interchangeable-lens camera introduced on September 10, 2013. It has built-in on sensor phase detection.
As of October 2014, it had the highest camera sensor rating of any Olympus camera, according to DxO Labs, with a score of 73.

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Features include

Sensor: 16 MP Live MOS sensor and no anti-aliasing filter
Buffer for 40 raw images at 10 frames per second with focus locked or 45 raw images at 6 frame per second with continuous autofocus.
Image stabilization: Olympus 5-axis image stabilization
TruePic VII processor with lens correction
ISO range: 200–25600, with "LOW ISO 100"
Manual focus with focus peaking
Focus points
*81 in contrast detection autofocus mode
*37 in phase detection autofocus mode
In-camera HDR
Flash: no built-in flash, small external flash included
Flash sync: 1/320 s with bundled FL-LM2 flash, otherwise 1/250 s.
HD video capture, including 1080i at 30 fps and 720p at 60 fps
Built-in Wi-Fi: 802.11 b/g/n for remote shooting via smartphone or tablet
Weather sealing: dust, splash, freeze resistance
Customizable buttons: 2 on the front
Built-in microphone socket
Ports: AP2 accessory port, AV/USB, HDMI connector

Olympus OM-D E-M1 Mark II

In 2016, the OM-D E-M1 was superseded by the Olympus OM-D E-M1 Mark II. The Mark II features a slightly higher resolution 20 MP Live MOS sensor. The Mark II also has substantially faster auto focus—according to the manufacturer, six times faster upon first focus acquisition than the original E-M1. The camera also has a 60 fps max shooting rate in Pro Capture mode using the electronic shutter, and vibration reduction technology in lenses as well as in camera.