Olympus E-3 vs Sony A7S III

Lets look more closely at the Olympus E-3 vs Sony A7S III, one being a Advanced DSLR and the latter is a Pro Mirrorless by manufacturers Olympus and Sony. The image resolution of the E-3 (10MP) and the A7S III (12MP) is relatively similar but the E-3 (Four Thirds) and A7S III (Full frame) boast different sensor size.

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The E-3 was brought out 13 years before the A7S III and that is quite a sizable gap as far as tech is concerned. The two cameras feature different body design with the Olympus E-3 being a Mid-size SLR camera and the Sony A7S III being a SLR-style mirrorless camera.

Before we go right into a step-by-step comparison, here is a short introduction of how the E-3 matches up against the A7S III with regard to portability, imaging, features and an overall grade.

Below is a preview of the gallery photos for Olympus E-3 and Sony Alpha A7S III. The entire galleries are available at Olympus E-3 Gallery and Sony A7S III Gallery.

For anyone who is intending to lug around your camera often, you will want to factor in its weight and dimensions. The Olympus E-3 has physical measurements of 142mm x 116mm x 75mm (5.6" x 4.6" x 3.0") along with a weight of 890 grams (1.96 lbs) while the Sony A7S III has dimensions of 129mm x 97mm x 81mm (5.1" x 3.8" x 3.2") having a weight of 699 grams (1.54 lbs).

See the Olympus E-3 vs Sony A7S III in the latest Camera and Lens Size Comparison Tool.

Keep in mind, the weight of an Interchangeable Lens Camera will differ depending on the lens you have attached at that moment. Here is a front view scale comparison of the E-3 vs the A7S III.

Considering size and weight, the portability grade of the E-3 and A7S III is 56 and 61 respectively.

Generally, it can be difficult to picture the contrast between sensor measurements just by reviewing specifications. The visual here might offer you a greater sense of the sensor sizing in the E-3 and A7S III.

To sum up, both cameras feature different resolutions and different sensor measurements. The E-3 featuring a tinier sensor is going to make getting shallow DOF more difficult and the Sony A7S III will offer you more detail having its extra 2MP. Higher resolution will help you crop pictures way more aggressively. The older E-3 is going to be disadvantaged in sensor tech.