Olympus E-M5 II vs Sony A7R III

Lets examine more closely at the Olympus E-M5 II and Sony A7R III, one being a Advanced Mirrorless and the latter is a Pro Mirrorless by rivals Olympus and Sony. There exists a big gap between the sensor resolutions of the E-M5 II (16MP) and A7R III (42MP) and the E-M5 II (Four Thirds) and A7R III (Full frame) use totally different sensor size.

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The E-M5 II was revealed 3 years earlier than the A7R III and that is quite a big gap as far as technology is concerned. Both cameras come with the identical body type (SLR-style mirrorless).

Before going straight into a comprehensive comparison, below is a brief introduction of how the E-M5 II grades against the A7R III in relation to portability, imaging, features and an overall rating.

Following is a preview of the gallery images for Olympus OM-D E-M5 II and Sony Alpha A7R III. The full galleries are provided at Olympus E-M5 II Gallery and Sony A7R III Gallery.

If you're looking to carry your camera regularly, you will want to factor its weight and dimensions. The Olympus E-M5 II features physical dimensions of 124mm x 85mm x 45mm (4.9" x 3.3" x 1.8") with a weight of 469 grams (1.03 lbs) whilst the Sony A7R III has dimensions of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") accompanied by a weight of 657 grams (1.45 lbs).

Compare the Olympus E-M5 II and Sony A7R III in the latest Camera with Lens Size Comparison Tool.

Remember, the weight of an Interchangeable Lens Camera will change dependant on the lens you have chosen at that time. Here is the front view physical size comparison of the E-M5 II compared to the A7R III.

Looking at dimensions and weight, the portability grade of the E-M5 II and A7R III is 80 and 63 respectively.

Quite often, it can be hard to visualise the contrast between sensor sizing merely by reading through specifications. The visual underneath should offer you a better sense of the sensor sizes in the E-M5 II and A7R III.

Plainly, both of those cameras have got different megapixel count and different sensor sizing. The E-M5 II with its tinier sensor will make achieving shallow DOF more challenging and the Sony A7R III will give more detail because of its extra 26MP. Higher resolution can also help you crop pictures much more aggressively. The older E-M5 II is going to be disadvantaged with regard to sensor tech.