Overall Rating:


Olympus OM-D E-M1X

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  • Autofocus:
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  • + Superb build quality and ergonomics make the camera a joy to shoot with
  • + Excellent JPEG output with well-judged exposure and attractive colour
  • + Incredibly effective in-body stabilisation keeps images sharp
  • + Very effective continuous autofocus and subject detection
  • + Huge range of useful additional photographic features


  • - Bulky body
  • - Lower high-ISO image quality than larger-sensor peers
  • - Restricted top-quality telephoto lens range



Price as Reviewed:

£2,799.99 (Body Only)

Andy Westlake investigates Olympus’s innovative new flagship camera: a pro-focused, rapid-shooting Micro Four Thirds powerhouse

Olympus OM-D E-M1X: Autofocus

Perhaps the camera’s most interesting feature is its Intelligent Subject Detection autofocus, which allows it to recognise and track specific kinds of subjects. This works in the C-AF + TR focus mode, and can be configured for trains, planes, or motorsports. The camera will then outline any object of the correct type in the viewfinder, and in principle ignore everything else.

Olympus EM1X motorsports sample

The E-M1X has no trouble keeping focus on cars driving at high speed directly towards the camera. Olympus OM-D E-M1X + M. Zuiko 300mm F4 IS Pro + MC-14 teleconverter, 1/2000sec at f/5.6, ISO 1250

Olympus says that the detection algorithm has been trained using a ‘deep learning’ approach, which means that the camera could in principle be updated to detect other subject types in future, such as birds or animals. Indeed, Olympus says it’s hoping to add modes for such subjects via future firmware updates. If it can’t find any object of the specified type, the AF falls back to its conventional subject-tracking mode.

Olympus E-M1X motorsport sample

The E-M1x is just as capable tracking subjects moving away from the camera. Olympus OM-D E-M1X + M.Zuiko 40-150mm f/2.8 at 150mm, 1/1250sec at f/2.8, ISO 320

Subject detection works really well, and did a brilliant job of when I tested it at a couple of motor sports events. It’s able to pick up cars wherever they enter the frame, rapidly acquire focus, and then follow them and track focus no matter how they move. One clear real-world benefit is that it’s rarely confused by any extraneous objects that temporarily obstruct your view. This ability to understand and track the desired subject is nothing short of revolutionary, making it so straightforward to get good results that it feels like cheating.

E-M1X wildlife sample

For this flying heron, I found using a central group of focus points more reliable. Olympus OM-D E-M1X, M.Zuiko 40-150mm f/2.8 Pro + MC-14 teleconverter, cropped to 840mm equivalent.

However while the E-M1X performs superbly with relatively large, well-defined subjects, I don’t think it’s quite on the same level as the class-leading Sony Alpha 9 in its ability to lock onto small, distant ones. Nor is it as capable of keeping track of randomly moving objects such as birds when it’s working purely by pattern and colour. It’s still no slouch, but with wildlife you’ll often be better off using groups of focus points rather than AF tracking, and the hit-rate probably won’t be as high.

E-M1X, Panasonic 100-300mm f/4-5.6, 0.6sec at f/5.6, ISO 6400. Shot using a pre-production E-M1X

With static subjects the AF likewise works extremely well, being practically silent, accurate and almost instantaneous. It also continues to work in remarkably low light. I was particularly impressed to find it could focus on the edge of the eclipsed moon using a 300mm f/5.6 telezoom.

  • Sensor: 20.4MP Live MOS, 17.4 x 13mm
  • Output size: 5184 x 3888
  • Focal length mag: 2x
  • Lens mount: Micro Four Thirds
  • Shutter speeds (mechanical): 60sec – 1/8000sec
  • Shutter speeds (electronic): 60sec - 1/32000sec
  • Sensitivity (standard): ISO 200-25,600
  • Sensitivity (extended): ISO 64-25,600
  • Exposure modes: PASM, B, Video, Custom x 4
  • Metering: Pattern, Centre Weighted, Spot, Highlight Spot, Shadow Spot
  • Exposure compensation: +/- 5EV in 0.3 EV steps
  • Continuous shooting: 60fps (fixed focus), 18fps with AF
  • Screen: 3in fully-articulated touchscreen
  • Viewfinder: 2.36m-dot, 0.83x magnification
  • AF points: 121, phase detection, all cross-type
  • Video: Cine 4K (4096 x 2160), 30p, 102Mbps
  • External mic: 3.5mm stereo
  • Memory card: 2x SD, SDHC, SDXC (both UHS-II)
  • Power: 2x BLH-1 Li-Ion
  • Battery life: 2850 shots
  • Dimensions: 144.4 x 146.8 x 75.4mm
  • Weight: 997g (with batteries and cards)

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