Olympus E-M10 IV vs Sony A7S III

In this write-up, we are looking at the Olympus E-M10 IV versus Sony A7S III, one being a Entry-Level Mirrorless and the other is a Pro Mirrorless by competitors Olympus and Sony. There exists a huge gap between the resolutions of the E-M10 IV (20MP) and A7S III (12MP) and the E-M10 IV (Four Thirds) and A7S III (Full frame) possess totally different sensor sizing.

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The E-M10 IV was launched very close to the A7S III so they are both of a similar generation. Both of the cameras offer the identical body type (SLR-style mirrorless).

Before diving in to a more detailed comparison, below is a short summary of how the E-M10 IV matches up vs the A7S III when it comes to portability, imaging, features and an overall rating.

Following is a sample of the gallery pictures for Olympus OM-D E-M10 IV and Sony Alpha A7S III. The complete galleries are provided at Olympus E-M10 IV Gallery and Sony A7S III Gallery.

For anyone who is aiming to carry your camera frequently, you are going to need to consider its weight and size. The Olympus E-M10 IV offers exterior measurements of 122mm x 84mm x 49mm (4.8" x 3.3" x 1.9") accompanied by a weight of 383 grams (0.84 lbs) whilst the Sony A7S III has specifications of 129mm x 97mm x 81mm (5.1" x 3.8" x 3.2") having a weight of 699 grams (1.54 lbs).

Compare the Olympus E-M10 IV versus Sony A7S III in the all new Camera with Lens Size Comparison Tool.

Bear in mind, the weight of an Interchangeable Lens Camera will differ depending on the lens you are working with at the time. Here is the front view proportions comparison of the E-M10 IV and the A7S III.

Using dimensions and weight, the portability score of the E-M10 IV and A7S III is 81 and 61 respectively.

Quite often, it is tough to see the contrast between sensor sizing only by going over specifications. The photograph below might give you a better sense of the sensor sizing in the E-M10 IV and A7S III.

To sum up, both of these cameras enjoy different resolutions and different sensor sizing. The E-M10 IV because of its tinier sensor will make achieving bokeh tougher and the Olympus E-M10 IV will offer you more detail utilizing its extra 8MP. Greater resolution can also let you crop photos far more aggressively.