Olympus E-M10 vs Sony A7R II

Here, we will be comparing the Olympus E-M10 vs Sony A7R II, one being a Entry-Level Mirrorless and the latter is a Pro Mirrorless by competitors Olympus and Sony. There is a big difference among the sensor resolutions of the E-M10 (16MP) and A7R II (42MP) and the E-M10 (Four Thirds) and A7R II (Full frame) boast different sensor dimensions.

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The E-M10 was unveiled 14 months before the A7R II which makes them a generation apart from each other. Both of the cameras feature the same body design (SLR-style mirrorless).

Before going right into a step-by-step comparison, here is a short view of how the E-M10 matches up vs the A7R II with respect to portability, imaging, features and an overall rating.

Below is a preview of the gallery photos for Olympus OM-D E-M10 and Sony Alpha A7R II. The full galleries are available at Olympus E-M10 Gallery and Sony A7R II Gallery.

For anyone who is planning to carry your camera frequently, you should factor in its weight and volume. The Olympus E-M10 provides physical measurements of 119mm x 82mm x 46mm (4.7" x 3.2" x 1.8") with a weight of 396 grams (0.87 lbs) and the Sony A7R II has sizing of 127mm x 96mm x 60mm (5.0" x 3.8" x 2.4") accompanied by a weight of 625 grams (1.38 lbs).

Compare the Olympus E-M10 vs Sony A7R II in the all new Camera and Lens Size Comparison Tool.

Don't forget, the weight of an Interchangeable Lens Camera will vary depending on the lens you are working with at that time. Following is a front view measurement comparison of the E-M10 against the A7R II.

Looking at size and weight, the portability grade of the E-M10 and A7R II is 82 and 68 respectively.

Generally, it can be difficult to picture the gap in sensor sizing simply by seeing specifications. The visual underneath might provide you a more clear sense of the sensor measurements in the E-M10 and A7R II.

To sum up, both the cameras feature different megapixel count and different sensor sizing. The E-M10 with its smaller sensor is going to make achieving shallower DOF tougher and the Sony A7R II will produce greater detail having an extra 26MP. Higher resolution will help you crop photographs way more aggressively. The older E-M10 will be behind in sensor technology.