Olympus E-M5 vs Sony A7 III

Here is a extensive analysis of the Olympus E-M5 vs Sony A7 III, one being a Advanced Mirrorless and the latter is a Pro Mirrorless by companies Olympus and Sony. There exists a significant gap among the image resolutions of the E-M5 (16MP) and A7 III (24MP) and the E-M5 (Four Thirds) and A7 III (Full frame) come with different sensor sizing.

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The E-M5 was introduced 6 years before the A7 III and that is a fairly sizable gap as far as camera technology is concerned. Both cameras come with the identical body type (SLR-style mirrorless).

Before going through a comprehensive comparison, below is a quick summary of how the E-M5 grades vs the A7 III with regards to portability, imaging, features and an overall rating.

Below is a preview of the gallery images for Olympus OM-D E-M5 and Sony Alpha A7 III. The whole galleries are viewable at Olympus E-M5 Gallery and Sony A7 III Gallery.

For anyone who is looking to carry your camera, you'll need to think about its weight and proportions. The Olympus E-M5 comes with external measurements of 122mm x 89mm x 43mm (4.8" x 3.5" x 1.7") along with a weight of 425 grams (0.94 lbs) while the Sony A7 III has measurements of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") and a weight of 650 grams (1.43 lbs).

Check the Olympus E-M5 vs Sony A7 III in the new Camera with Lens Size Comparison Tool.

Always remember, the weight of an Interchangeable Lens Camera will vary dependant on the lens you are utilising during that time. Following is the front view overall size comparison of the E-M5 and the A7 III.

Factoring in dimensions and weight, the portability grade of the E-M5 and A7 III is 81 and 63 respectively.

More often than not, it can be hard to picture the gap in sensor sizing merely by viewing specs. The photograph here will help provide you a far better sense of the sensor sizing in the E-M5 and A7 III.

As you can plainly see, both of those cameras have got different resolutions and different sensor sizing. The E-M5 using its smaller sensor is going to make shooting shallow DOF more difficult and the Sony A7 III will render greater detail using its extra 8MP. Higher resolution can also make it easier to crop photographs much more aggressively. The older E-M5 will be disadvantaged with regard to sensor technology.