Olympus E-M10 III vs Sony A7S II

Here, we will be looking at the Olympus E-M10 III versus Sony A7S II, former is a Entry-Level Mirrorless while the latter is a Pro Mirrorless by rivals Olympus and Sony. There exists a considerable gap among the resolutions of the E-M10 III (16MP) and A7S II (12MP) and the E-M10 III (Four Thirds) and A7S II (Full frame) offer totally different sensor size.

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The E-M10 III was released 23 months after the A7S II which makes them a generation away from one another. Both the cameras feature the same body design (SLR-style mirrorless).

Before getting into a thorough comparison, here is a short view of how the E-M10 III matches up versus the A7S II when it comes to portability, imaging, features and an overall mark.

This is a preview of the gallery images for Olympus OM-D E-M10 Mark III & Sony Alpha A7S II. The complete galleries are available at Olympus E-M10 III Gallery & Sony A7S II Gallery.

For those who are aiming to travel with your camera often, you will have to take into account its weight and volume. The Olympus E-M10 III features external measurements of 122mm x 84mm x 50mm (4.8" x 3.3" x 2.0") and a weight of 410 grams (0.90 lbs) whilst the Sony A7S II has sizing of 127mm x 96mm x 60mm (5.0" x 3.8" x 2.4") with a weight of 627 grams (1.38 lbs).

Compare the Olympus E-M10 III versus Sony A7S II in our completely new Camera plus Lens Size Comparison Tool.

Remember that, the weight of an ILC will differ depending on the lens you choose at the time. Below is a front view physical size comparison of the E-M10 III versus the A7S II.

Using dimensions and weight, the portability rating of the E-M10 III and A7S II is 80 and 68 respectively.

More often than not, it is very hard to envision the contrast in sensor dimensions purely by looking through specifications. The picture underneath will help provide you a stronger sense of the sensor measurements in the E-M10 III and A7S II.

To sum up, each of these cameras feature different resolutions and different sensor dimensions. The E-M10 III featuring a smaller sensor will make achieving shallow DOF more difficult and the Olympus E-M10 III will provide you with greater detail as a result of its extra 4 Megapixels. Higher resolution will also allow you to crop pictures way more aggressively. The younger E-M10 III will have a benefit with regard to sensor innovation.