Olympus E-M10 III vs Sony A9

Here, we are matching up the Olympus E-M10 III and Sony A9, one is a Entry-Level Mirrorless and the other is a Pro Mirrorless by competitors Olympus and Sony. There exists a significant gap among the resolutions of the E-M10 III (16MP) and A9 (24MP) and the E-M10 III (Four Thirds) and A9 (Full frame) have different sensor measurements.

Photography Glossary

The E-M10 III was released 5 months after the A9 so they are of a similar generation. Each of the cameras feature the same body design (SLR-style mirrorless).

Before getting into a full comparison, here is a concise view of how the E-M10 III matches up against the A9 when considering portability, imaging, features and an overall score.

The following is a sample of the gallery pics for Olympus OM-D E-M10 Mark III and Sony Alpha A9. The complete galleries are available at Olympus E-M10 III Gallery and Sony A9 Gallery.

For those who are aiming to carry around your camera often, you'll need to factor in its weight and measurements. The Olympus E-M10 III comes with exterior dimensions of 122mm x 84mm x 50mm (4.8" x 3.3" x 2.0") and a weight of 410 grams (0.90 lbs) whilst the Sony A9 has proportions of 127mm x 96mm x 63mm (5.0" x 3.8" x 2.5") accompanied by a weight of 673 grams (1.48 lbs).

Check the Olympus E-M10 III and Sony A9 in the all new Camera with Lens Size Comparison Tool.

Remember, the weight of an Interchangeable Lens Camera will change depending on the lens you select at that moment. Underneath is a front view physical size comparison of the E-M10 III against the A9.

Using dimensions and weight, the portability score of the E-M10 III and A9 is 80 and 65 respectively.

Typically, it's hard to imagine the difference in sensor sizes simply by looking through specifications. The image underneath might provide you a more clear sense of the sensor dimensions in the E-M10 III and A9.

To sum up, the two cameras feature different megapixels and different sensor sizes. The E-M10 III due to its smaller sensor is going to make getting bokeh more challenging and the Sony A9 will result in extra detail as a result of its extra 8 Megapixels. Greater resolution will help you crop images way more aggressively.