Olympus E-M1 III vs Sony A7S II

Below, we will be contrasting the Olympus E-M1 III and Sony A7S II, both Pro Mirrorless digital cameras by brands Olympus and Sony. There is a big difference between the resolutions of the E-M1 III (20MP) and A7S II (12MP) and the E-M1 III (Four Thirds) and A7S II (Full frame) enjoy different sensor dimensions.

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The E-M1 III was brought out 4 years after the A7S II which is quite a big gap as far as tech is concerned. Each of these cameras come with the identical body type (SLR-style mirrorless).

Before diving in to a complete comparison, below is a brief view of how the E-M1 III matches up vs the A7S II for portability, imaging, features and an overall mark.

Here is a preview of the gallery photos for Olympus OM-D E-M1 Mark III and Sony Alpha A7S II. The entire galleries are available at Olympus E-M1 III Gallery and Sony A7S II Gallery.

For anyone who is intending to travel with your camera regularly, you should factor in its weight and dimensions. The Olympus E-M1 III has outer dimensions of 134mm x 91mm x 69mm (5.3" x 3.6" x 2.7") having a weight of 580 grams (1.28 lbs) whilst the Sony A7S II has dimensions of 127mm x 96mm x 60mm (5.0" x 3.8" x 2.4") accompanied by a weight of 627 grams (1.38 lbs).

Look at the Olympus E-M1 III and Sony A7S II in the latest Camera with Lens Size Comparison Tool.

Take into consideration, the weight of an Interchangeable Lens Camera will change dependant on the lens you choose at that moment. The following is the front view size comparison of the E-M1 III and the A7S II.

Factoring in size and weight, the portability rating of the E-M1 III and A7S II is 67 and 68 respectively.

Generally, it is hard to visualize the contrast between sensor dimensions merely by checking specs. The pic underneath will provide you a greater sense of the sensor dimensions in the E-M1 III and A7S II.

As you can plainly see, both the cameras have got different megapixels and different sensor dimensions. The E-M1 III featuring a tinier sensor is going to make shooting shallow DOF tougher and the Olympus E-M1 III will give you greater detail having its extra 8MP. Higher resolution can also make it easier to crop photographs much more aggressively. The more modern E-M1 III provides a benefit in sensor technology.