Olympus, for some awkward reason, chose an incredibly difficult naming scheme for its flagship mirrorless lineup, but moving past that, you realize there is something incredibly special about this camera.

Incredibly fast and accurate AF; Weather Sealed; Very useful EVF

High ISO performance can be dodgy; A little pricey

Image Quality Controls Customization Weather sealing EVF is best I've used

Not part of a lens bundle yet; Only had Body only

The OM-D E-M1 represents the best that Olympus has to offer in the compact system camera (CSC) market. It's a Micro Four Thirds-based, interchangeable lens camera that balances the needs of pros and enthusiast photographers in one neat, and solid package.

Strong build quality; Excellent controls; Excellent image quality; Fast performance

Shutter button too squishy for our liking; Some noticeable LCD and EVF flickering under fluro lights

The OM-D E-M1 takes over as the flagship camera for Olympus. It's a Micro Four Thirds-based camera with a stack of features that's aimed at those of...

Strong build quality; Excellent controls; Excellent image quality; Fast performance

Shutter button too squishy for our liking; Some noticeable LCD and EVF flickering under fluro lights

Back in 2012, when we reviewed the Olympus OM-D E-M5 we called it the "best Olympus compact system camera to date, and also a strong contender for best compact system camera full stop.

The Olympus OM-D E-M5 was one of the most popular cameras of last year, owing to the combination of an impressive specification, attractive retro looks and excellent image quality. The E-M1 looks to pick up where the E-M5 left off.

Superb electronic viewfinder; Responsive AF system; Good image quality; Sturdy build

JPEG files somewhat over-processed

This review supplements the detailed 'First Look' at the OM-D E-M1 , which we published in September and focuses upon the new camera's performance in our standard suite of tests with the new M.Zuiko Digital ED 12-40mm f/2.8 Pro lens , which is reviewed separately.

Olympus OM-D E-M1 Review – The Olympus OM-D E-M1 is the second model in the retro-styled OM-D series, sitting above the E-M5 at the top of the range. It looks to combine the best of a DSLR and system camera in a single package, so read our Olympus OM-D E-M1 review to find out if it succeeds

Build quality; Electronic viewfinder is excellent; Fast and responsive AF; Image quality

JPEG files a little over-processed at higher sensitivities

The 16 megapixel E-M1 is the company's top micro four thirds camera. It has a 2.36 megapixel electronic viewfinder, dual contrast and phase detection auto focus, five axis sensor-shift stabilisation and built-in Wi-Fi with remote control from a smartphone. The LCD swivels on the vertical plane.

, this means this camera should be, and thankfully is capable of the highest quality photos of any Micro Four Thirds camera, and when used with high quality prime lenses, the difference can be seen, although is quite subtle at times, with the previous model, the Olympus OM-D E-M5 already providing...

Best ever image quality from Micro Four Thirds; Support for both Four Thirds and Micro Four Thirds lenses; In camera HDR preview and creation; Wi-Fi remote shooting improved; Improved handling and DSLR styling; 10fps continuous shooting; with good number before slowing down; Impressive 5-axis image...

Focus peaking not available in video mode; Video options better on other cameras (GH3; High price when bought with kit lenses; Lacks automatic panoramic creation mode