Olympus E-M1 III vs Panasonic GX850

Below is a in-depth assessment of the Olympus E-M1 III versus Panasonic GX850, former being a Pro Mirrorless while the other is a Entry-Level Mirrorless by rivals Olympus and Panasonic. There exists a large gap among the sensor resolutions of the E-M1 III (20MP) and GX850 (16MP) but they use the exact same sensor sizes (Four Thirds).

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The E-M1 III was introduced 3 years later than the GX850 and that is a fairly serious difference as far as camera technology is concerned. Both cameras come with different body type with the Olympus E-M1 III being a SLR-style mirrorless camera and the Panasonic GX850 being a Rangefinder-style mirrorless camera.

Before diving through a in-depth comparison, below is a brief synopsis of how the E-M1 III matches up vs the GX850 for portability, imaging, features and an overall grade.

The following is a sample of the gallery pics for Olympus OM-D E-M1 Mark III & Panasonic Lumix DMC-GX850. The whole galleries are provided at Olympus E-M1 III Gallery & Panasonic GX850 Gallery.

If you are aiming to lug around your camera frequently, you are going to need to consider its weight and proportions. The Olympus E-M1 III enjoys physical dimensions of 134mm x 91mm x 69mm (5.3" x 3.6" x 2.7") and a weight of 580 grams (1.28 lbs) whilst the Panasonic GX850 has measurements of 107mm x 65mm x 33mm (4.2" x 2.6" x 1.3") and a weight of 269 grams (0.59 lbs).

Contrast the Olympus E-M1 III versus Panasonic GX850 in our completely new Camera & Lens Size Comparison Tool.

Don't forget, the weight of an ILC will differ based on the lens you have chosen at the time. Below is the front view proportions comparison of the E-M1 III vs the GX850.

Looking at dimensions and weight, the portability rating of the E-M1 III and GX850 is 67 and 90 respectively.

Typically, it's hard to envision the difference in sensor measurements merely by going through specifications. The visual underneath will give you a stronger sense of the sensor dimensions in the E-M1 III and GX850.

Plainly, each of these cameras have got the exact same sensor measurements but not the same resolution. You can expect to see the Olympus E-M1 III to show greater detail using its extra 4MP. Greater resolution will make it easier to crop images much more aggressively. The fresher E-M1 III is going to have an advantage with regard to sensor innovation.