Olympus E-M1 III vs Sony A7 II

Here is a comprehensive assessment of the Olympus E-M1 III and Sony A7 II, both Pro Mirrorless digital cameras by competitors Olympus and Sony. The sensor resolution of the E-M1 III (20MP) and the A7 II (24MP) is very well matched but the E-M1 III (Four Thirds) and A7 II (Full frame) enjoy different sensor dimensions.

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The E-M1 III was introduced 5 years later than the A7 II and that is quite a serious gap as far as tech is concerned. Both of these cameras offer the identical body type (SLR-style mirrorless).

Before going in to a comprehensive comparison, below is a quick highlight of how the E-M1 III scores vs the A7 II with respect to portability, imaging, features and an overall rating.

Here is a sample of the gallery pics for Olympus OM-D E-M1 Mark III and Sony Alpha A7 II. The whole galleries are available at Olympus E-M1 III Gallery and Sony A7 II Gallery.

If you're intending to carry your camera, you should factor its weight and proportions. The Olympus E-M1 III has outside measurements 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 A7 II has measurements of 127mm x 96mm x 60mm (5.0" x 3.8" x 2.4") and a weight of 599 grams (1.32 lbs).

Compare the Olympus E-M1 III and Sony A7 II in the all new Camera and Lens Size Comparison Tool.

Remember that, the weight of an Interchangeable Lens Camera will change based on the lens you are utilising at that time. The following is the front view physical size comparison of the E-M1 III against the A7 II.

Looking at size and weight, the portability score of the E-M1 III and A7 II is 67 and 69 respectively.

Oftentimes, it's tough to visualize the difference between sensor sizing only by looking at specs. The visual underneath might give you a better sense of the sensor measurements in the E-M1 III and A7 II.

As you can plainly see, the 2 cameras offer different megapixels and different sensor sizing. The E-M1 III with its tinier sensor is going to make shooting bokeh more difficult and the Sony A7 II will give more detail using its extra 4MP. Greater resolution can also make it easier to crop pics a little more aggressively. The fresher E-M1 III provides a benefit in sensor innovation.