Olympus E-620 vs Sony A7S III

Let's look a little more closely at the Olympus E-620 versus Sony A7S III, one being a Entry-Level DSLR and the other is a Pro Mirrorless by manufacturers Olympus and Sony. The resolution of the E-620 (12MP) and the A7S III (12MP) is fairly well matched but the E-620 (Four Thirds) and A7S III (Full frame) enjoy different sensor sizes.

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The E-620 was revealed 12 years earlier than the A7S III and that is quite a sizable gap as far as technology is concerned. Both of the cameras offer different body type with the Olympus E-620 being a Compact SLR camera and the Sony A7S III being a SLR-style mirrorless camera.

Before diving in to a more detailed comparison, below is a brief synopsis of how the E-620 scores vs the A7S III for portability, imaging, features and an overall rating.

This is a sample of the gallery pictures for Olympus E-620 and Sony Alpha A7S III. The full galleries are provided at Olympus E-620 Gallery and Sony A7S III Gallery.

For anybody who is intending to carry your camera frequently, you're going to have to factor in its weight and size. The Olympus E-620 provides external measurements of 130mm x 94mm x 60mm (5.1" x 3.7" x 2.4") and a weight of 500 grams (1.10 lbs) while the Sony A7S III has specifications of 129mm x 97mm x 81mm (5.1" x 3.8" x 3.2") and a weight of 699 grams (1.54 lbs).

Look at the Olympus E-620 versus Sony A7S III in the latest Camera and Lens Size Comparison Tool.

Remember that, the weight of an Interchangeable Lens Camera will change dependant on the lens you have attached at that moment. Here is the front view overall size comparison of the E-620 versus the A7S III.

Considering dimensions and weight, the portability rating of the E-620 and A7S III is 71 and 61 respectively.

Sometimes, it is very difficult to visualize the difference between sensor sizing simply by checking specifications. The photograph underneath will offer you a more clear sense of the sensor measurements in the E-620 and A7S III.

Plainly, both of these cameras offer the same exact megapixels but different sensor sizing. The E-620 has got the tinier sensor which is going to make obtaining shallow DOF harder. The older E-620 is going to be disadvantaged in sensor innovation.