Olympus E-M10 III vs Sony A7R IV

Lets examine more in depth at the Olympus E-M10 III vs Sony A7R IV, former is a Entry-Level Mirrorless while the latter is a Pro Mirrorless by companies Olympus and Sony. There is a noticeable difference among the sensor resolutions of the E-M10 III (16MP) and A7R IV (61MP) and the E-M10 III (Four Thirds) and A7R IV (Full frame) use totally different sensor sizes.

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The E-M10 III was unveiled 22 months before the A7R IV which makes the cameras a generation away from each other. Both of the cameras offer the identical body type (SLR-style mirrorless).

Before diving through a in-depth comparison, below is a simple synopsis of how the E-M10 III grades versus the A7R IV in regards to portability, imaging, features and an overall score.

Here is a preview of the gallery images for Olympus OM-D E-M10 Mark III & Sony Alpha A7R IV. The full galleries are provided at Olympus E-M10 III Gallery & Sony A7R IV Gallery.

When you are planning to carry around your camera frequently, you'll have to think about its weight and dimensions. The Olympus E-M10 III has got outside dimensions of 122mm x 84mm x 50mm (4.8" x 3.3" x 2.0") with a weight of 410 grams (0.90 lbs) and the Sony A7R IV has dimensions of 129mm x 96mm x 78mm (5.1" x 3.8" x 3.1") along with a weight of 665 grams (1.47 lbs).

Examine the Olympus E-M10 III vs Sony A7R IV in our brand new Camera & Lens Size Comparison Tool.

Take into consideration, the weight of an ILC will change dependant on the lens you have chosen during that time. Below is the front view measurement comparison of the E-M10 III vs the A7R IV.

Looking at size and weight, the portability rating of the E-M10 III and A7R IV is 80 and 62 respectively.

Oftentimes, it can be hard to visualise the difference in sensor sizes merely by looking through a spec sheet. The picture underneath might give you a greater sense of the sensor dimensions in the E-M10 III and A7R IV.

As you can see, both the cameras offer different megapixels and different sensor sizes. The E-M10 III using its smaller sensor will make getting shallow DOF trickier and the Sony A7R IV will result in more detail having an extra 45 Megapixels. Higher resolution will also help you crop photographs a little more aggressively. The more aged E-M10 III will be behind in sensor tech.