Olympus E-P2 vs Sony A7 III

Below, we are reviewing the Olympus E-P2 and Sony A7 III, one is a Entry-Level Mirrorless and the other is a Pro Mirrorless by companies Olympus and Sony. There is a sizeable difference among the resolutions of the E-P2 (12MP) and A7 III (24MP) and the E-P2 (Four Thirds) and A7 III (Full frame) feature totally different sensor size.

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The E-P2 was revealed 8 years prior to the A7 III which is a fairly large gap as far as camera tech is concerned. Each of the cameras come with different body type with the Olympus E-P2 being a Rangefinder-style mirrorless camera and the Sony A7 III being a SLR-style mirrorless camera.

Before going straight into a more detailed comparison, below is a quick summation of how the E-P2 matches up versus the A7 III in the way of portability, imaging, features and an overall score.

Below is a sample of the gallery pics for Olympus PEN E-P2 and Sony Alpha A7 III. The full galleries are provided at Olympus E-P2 Gallery and Sony A7 III Gallery.

If you're aiming to carry around your camera frequently, you need to consider its weight and size. The Olympus E-P2 provides outside measurements of 121mm x 70mm x 36mm (4.8" x 2.8" x 1.4") and a weight of 355 grams (0.78 lbs) while the Sony A7 III has specifications of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") and a weight of 650 grams (1.43 lbs).

Analyze the Olympus E-P2 and Sony A7 III in the all new Camera with Lens Size Comparison Tool.

Remember that, the weight of an Interchangeable Lens Camera will change depending on the lens you have attached at the time. Here is the front view proportions comparison of the E-P2 compared to the A7 III.

Using size and weight, the portability rating of the E-P2 and A7 III is 86 and 63 respectively.

Generally, it is very difficult to envision the gap in sensor sizes merely by viewing specs. The pic below will help provide you a better sense of the sensor measurements in the E-P2 and A7 III.

All in all, both of these cameras have got different megapixels and different sensor sizes. The E-P2 having a smaller sensor will make shooting shallower DOF trickier and the Sony A7 III will result in more detail because of its extra 12MP. Greater resolution will also enable you to crop pics much more aggressively. The more aged E-P2 will be disadvantaged when it comes to sensor tech.