Olympus E-M1 II vs Sony A9 II

The following is a detailed overview of the Olympus E-M1 II versus Sony A9 II, both Pro Mirrorless digital cameras by manufacturers Olympus and Sony. The sensor resolution of the E-M1 II (20MP) and the A9 II (24MP) is very similar but the E-M1 II (Four Thirds) and A9 II (Full frame) provide different sensor sizes.

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The E-M1 II was announced 4 years prior to the A9 II which is quite a serious difference as far as tech is concerned. Both of the cameras have the same body design (SLR-style mirrorless).

Before delving into a more detailed comparison, here is a brief view of how the E-M1 II matches up versus the A9 II with regard to portability, imaging, features and an overall mark.

Below is a sample of the gallery pics for Olympus OM-D E-M1 Mark II & Sony Alpha A9 Mark II. The whole galleries are viewable at Olympus E-M1 II Gallery & Sony A9 II Gallery.

In case you're going to travel with your camera often, you're going to have to take into account its weight and measurements. The Olympus E-M1 II features physical dimensions of 134mm x 91mm x 67mm (5.3" x 3.6" x 2.6") having a weight of 574 grams (1.27 lbs) whilst the Sony A9 II has proportions of 129mm x 96mm x 76mm (5.1" x 3.8" x 3.0") along with a weight of 678 grams (1.49 lbs).

See the Olympus E-M1 II versus Sony A9 II in our brand new Camera plus Lens Size Comparison Tool.

Keep in mind, the weight of an ILC will vary dependant on the lens you select at the time. Underneath is a front view scale comparison of the E-M1 II against the A9 II.

Considering size and weight, the portability score of the E-M1 II and A9 II is 68 and 62 respectively.

In many cases, it is hard to visualize the gap between sensor dimensions simply by reading specs. The pic below might offer you a clearer sense of the sensor dimensions in the E-M1 II and A9 II.

As you can plainly see, each of the cameras have different megapixel count and different sensor dimensions. The E-M1 II having a tinier sensor is going to make achieving shallow DOF more challenging and the Sony A9 II will offer you extra detail with its extra 4MP. Greater resolution will also allow you to crop images a bit more aggressively. The more aged E-M1 II is going to be disadvantaged when it comes to sensor technology.