Olympus E-M1 III vs Sony A9 II

Its time to take a more detailed look at the Olympus E-M1 III and Sony A9 II, both Pro Mirrorless digital cameras by manufacturers Olympus and Sony. The sensor resolution of the E-M1 III (20MP) and the A9 II (24MP) is very well matched but the E-M1 III (Four Thirds) and A9 II (Full frame) have different sensor sizing.

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The E-M1 III was brought out 5 months after the A9 II which means that they are of a similar generation. The two cameras have the same body design (SLR-style mirrorless).

Before diving into a more detailed comparison, here is a quick summary of how the E-M1 III matches up versus the A9 II with regard to portability, imaging, features and an overall score.

Following is a sample of the gallery pics for Olympus OM-D E-M1 Mark III and Sony Alpha A9 Mark II. The entire galleries are viewable at Olympus E-M1 III Gallery and Sony A9 II Gallery.

For anyone who is intending to carry around your camera regularly, you're going to have to think about its weight and size. The Olympus E-M1 III comes with outer dimensions of 134mm x 91mm x 69mm (5.3" x 3.6" x 2.7") with a weight of 580 grams (1.28 lbs) while the Sony A9 II has specifications of 129mm x 96mm x 76mm (5.1" x 3.8" x 3.0") with a weight of 678 grams (1.49 lbs).

Check out the Olympus E-M1 III and Sony A9 II in the new Camera and Lens Size Comparison Tool.

Remember that, the weight of an Interchangeable Lens Camera will differ depending on the lens you use at that moment. The following is a front view overall size comparison of the E-M1 III and the A9 II.

Considering size and weight, the portability rating of the E-M1 III and A9 II is 67 and 62 respectively.

Generally, it is difficult to picture the contrast between sensor sizes only by looking at specifications. The picture here should give you a much better sense of the sensor dimensions in the E-M1 III and A9 II.

Plainly, both of these cameras have different megapixel count and different sensor sizes. The E-M1 III because of its tinier sensor is going to make getting shallower DOF harder and the Sony A9 II will give extra detail having its extra 4MP. Greater resolution will make it easier to crop pics a bit more aggressively.