Nikon D810A vs Olympus E-M5 III

Below, we will be reviewing the Nikon D810A versus Olympus E-M5 III, former being a Advanced DSLR while the latter is a Advanced Mirrorless by competitors Nikon and Olympus. There is a sizable difference between the sensor resolutions of the D810A (36MP) and E-M5 III (20MP) and the D810A (Full frame) and E-M5 III (Four Thirds) feature different sensor measurements.

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The D810A was launched 5 years before the E-M5 III and that is quite a significant difference as far as tech is concerned. Both of the cameras come with different body type with the Nikon D810A being a Mid-size SLR camera and the Olympus E-M5 III being a SLR-style mirrorless camera.

Before diving straight into a thorough comparison, below is a quick synopsis of how the D810A matches up versus the E-M5 III in relation to portability, imaging, features and an overall grade.

This is a preview of the gallery images for Nikon D810A & Olympus OM-D E-M5 III. The complete galleries are viewable at Nikon D810A Gallery & Olympus E-M5 III Gallery.

In case you're intending to lug around your camera often, you will need to think about its weight and proportions. The Nikon D810A has got external measurements of 146mm x 123mm x 82mm (5.7" x 4.8" x 3.2") having a weight of 880 grams (1.94 lbs) and the Olympus E-M5 III has measurements of 125mm x 85mm x 50mm (4.9" x 3.3" x 2.0") and a weight of 414 grams (0.91 lbs).

Compare the Nikon D810A versus Olympus E-M5 III in our newest Camera plus Lens Size Comparison Tool.

Take into consideration, the weight of an ILC will change depending on the lens you choose at that time. Underneath is the front view scale comparison of the D810A compared to the E-M5 III.

Taking into account size and weight, the portability rating of the D810A and E-M5 III is 55 and 80 respectively.

In many cases, it's difficult to picture the difference between sensor measurements merely by checking a spec sheet. The graphic underneath might give you a clearer sense of the sensor sizing in the D810A and E-M5 III.

Clearly, each of these cameras posses different resolutions and different sensor measurements. The D810A because of its bigger sensor is going to make achieving shallow DOF less difficult and the Nikon D810A will give you greater detail utilizing its extra 16MP. Higher resolution will help you crop photographs somewhat more aggressively. The older D810A is going to be behind in sensor tech.