Olympus SZ-12 vs Sony A7 III

Let's look more closely at the Olympus SZ-12 and Sony A7 III, one being a Small Sensor Superzoom and the latter is a Pro Mirrorless by companies Olympus and Sony. There exists a sizeable gap between the image resolutions of the SZ-12 (14MP) and A7 III (24MP) and the SZ-12 (1/2.3") and A7 III (Full frame) boast totally different sensor sizes.

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The SZ-12 was manufactured 7 years earlier than the A7 III and that is quite a large gap as far as technology is concerned. Both of these cameras have different body design with the Olympus SZ-12 being a Compact camera and the Sony A7 III being a SLR-style mirrorless camera.

Before we go straight to a thorough comparison, here is a simple view of how the SZ-12 matches up versus the A7 III in relation to portability, imaging, features and an overall rating.

Below is a preview of the gallery images for Olympus SZ-12 and Sony Alpha A7 III. The entire galleries are provided at Olympus SZ-12 Gallery and Sony A7 III Gallery.

In case you're intending to carry your camera often, you have to factor its weight and volume. The Olympus SZ-12 features outer measurements of 106mm x 69mm x 40mm (4.2" x 2.7" x 1.6") along with a weight of 226 grams (0.50 lbs) while the Sony A7 III has sizing of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") along with a weight of 650 grams (1.43 lbs).

Check the Olympus SZ-12 and Sony A7 III in the latest Camera and Lens Size Comparison Tool.

Take into account, the weight of an Interchangeable Lens Camera will change dependant on the lens you select during that time. Here is a front view scale comparison of the SZ-12 and the A7 III.

Considering dimensions and weight, the portability grade of the SZ-12 and A7 III is 89 and 63 respectively.

Typically, its difficult to visualise the gap between sensor sizing simply by reading a spec sheet. The graphic here might offer you a clearer sense of the sensor measurements in the SZ-12 and A7 III.

Clearly, each of these cameras have different megapixel count and different sensor sizing. The SZ-12 because of its tinier sensor will make achieving shallower depth of field more challenging and the Sony A7 III will offer you extra detail due to its extra 10MP. Higher resolution can also enable you to crop photographs a bit more aggressively. The older SZ-12 is going to be disadvantaged in sensor tech.