Olympus E-P5 vs Sony A7R III

Below, we are matching up the Olympus E-P5 and Sony A7R III, former is a Entry-Level Mirrorless while the other is a Pro Mirrorless by competitors Olympus and Sony. There is a substantial difference among the sensor resolutions of the E-P5 (16MP) and A7R III (42MP) and the E-P5 (Four Thirds) and A7R III (Full frame) use totally different sensor sizing.

Photography Glossary

The E-P5 was manufactured 5 years before the A7R III which is a fairly big difference as far as camera tech is concerned. Each of these cameras come with different body type with the Olympus E-P5 being a Rangefinder-style mirrorless camera and the Sony A7R III being a SLR-style mirrorless camera.

Before diving straight into a more detailed comparison, below is a simple highlight of how the E-P5 matches up vs the A7R III when it comes to portability, imaging, features and an overall mark.

Following is a sample of the gallery pics for Olympus PEN E-P5 & Sony Alpha A7R III. The entire galleries are viewable at Olympus E-P5 Gallery & Sony A7R III Gallery.

When you are planning to travel with your camera frequently, you are going to need to think about its weight and size. The Olympus E-P5 provides external measurements of 122mm x 69mm x 37mm (4.8" x 2.7" x 1.5") and a weight of 420 grams (0.93 lbs) whilst the Sony A7R III has specifications of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") having a weight of 657 grams (1.45 lbs).

Take a look at the Olympus E-P5 and Sony A7R III in our completely new Camera & Lens Size Comparison Tool.

Keep in mind, the weight of an ILC will differ depending on the lens you are employing at the time. Below is the front view dimensions comparison of the E-P5 vs the A7R III.

Looking at size and weight, the portability rating of the E-P5 and A7R III is 85 and 63 respectively.

Oftentimes, it is very hard to see the contrast in sensor dimensions only by checking out specs. The pic below will provide you a better sense of the sensor sizing in the E-P5 and A7R III.

As you can plainly see, both of the cameras posses different megapixel count and different sensor dimensions. The E-P5 featuring a smaller sensor will make achieving shallower depth of field harder and the Sony A7R III will provide greater detail due to its extra 26MP. Greater resolution can also let you crop pics somewhat more aggressively. The more aged E-P5 will be behind when it comes to sensor innovation.