Olympus E-M1 vs Sony A7R II

Here, we will be analyzing the Olympus E-M1 versus Sony A7R II, both Pro Mirrorless digital cameras by brands Olympus and Sony. There is a noticeable difference between the resolutions of the E-M1 (16MP) and A7R II (42MP) and the E-M1 (Four Thirds) and A7R II (Full frame) have totally different sensor sizes.

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The E-M1 was announced 19 months earlier than the A7R II which makes them a generation apart from each other. Both of these cameras feature the same body design (SLR-style mirrorless).

Before diving straight to a more detailed comparison, here is a simple synopsis of how the E-M1 grades versus the A7R II in the way of portability, imaging, features and an overall grade.

Here is a preview of the gallery photos for Olympus OM-D E-M1 & Sony Alpha A7R II. The whole galleries are viewable at Olympus E-M1 Gallery & Sony A7R II Gallery.

If you're going to lug around your camera often, you will need to factor its weight and size. The Olympus E-M1 offers physical dimensions of 130mm x 94mm x 63mm (5.1" x 3.7" x 2.5") along with a weight of 497 grams (1.10 lbs) whilst the Sony A7R II has specifications of 127mm x 96mm x 60mm (5.0" x 3.8" x 2.4") along with a weight of 625 grams (1.38 lbs).

Check the Olympus E-M1 versus Sony A7R II in our brand new Camera & Lens Size Comparison Tool.

Don't forget, the weight of an ILC will differ based on the lens you are utilizing at the time. Underneath is a front view measurement comparison of the E-M1 vs the A7R II.

Taking into account size and weight, the portability grade of the E-M1 and A7R II is 71 and 68 respectively.

Usually, it is very tough to see the contrast between sensor measurements merely by reviewing specifications. The photograph here will offer you a far better sense of the sensor sizes in the E-M1 and A7R II.

Plainly, both the cameras feature different resolutions and different sensor measurements. The E-M1 with its tinier sensor will make getting shallower DOF more challenging and the Sony A7R II will deliver greater detail with its extra 26MP. Higher resolution can also let you crop shots way more aggressively. The older E-M1 is going to be disadvantaged with regard to sensor technology.