Olympus SZ-31MR iHS vs Sony A7R III

Lets take a more detailed look at the Olympus SZ-31MR iHS versus Sony A7R III, one is a Small Sensor Superzoom and the other is a Pro Mirrorless by competitors Olympus and Sony. There is a crucial difference among the image resolutions of the SZ-31MR iHS (16MP) and A7R III (42MP) and the SZ-31MR iHS (1/2.3") and A7R III (Full frame) come with different sensor dimensions.

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The SZ-31MR iHS was revealed 6 years prior to the A7R III which is a fairly serious gap as far as camera tech is concerned. Both of these cameras come with different body type with the Olympus SZ-31MR iHS being a Compact camera and the Sony A7R III being a SLR-style mirrorless camera.

Before delving in to a complete comparison, below is a short introduction of how the SZ-31MR iHS matches up against the A7R III with regard to portability, imaging, features and an overall score.

Below is a sample of the gallery pics for Olympus SZ-31MR iHS and Sony Alpha A7R III. The full galleries are provided at Olympus SZ-31MR iHS Gallery and Sony A7R III Gallery.

In case you're intending to carry around your camera regularly, you will need to factor in its weight and volume. The Olympus SZ-31MR iHS comes with external dimensions of 106mm x 69mm x 40mm (4.2" x 2.7" x 1.6") with a weight of 226 grams (0.50 lbs) whilst the Sony A7R III has sizing of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") along with a weight of 657 grams (1.45 lbs).

Look at the Olympus SZ-31MR iHS versus Sony A7R III in the latest Camera and Lens Size Comparison Tool.

Bear in mind, the weight of an Interchangeable Lens Camera will differ depending on the lens you are using at the time. Following is the front view measurements comparison of the SZ-31MR iHS vs the A7R III.

Factoring in size and weight, the portability rating of the SZ-31MR iHS and A7R III is 89 and 63 respectively.

Often, it can be difficult to imagine the gap in sensor sizes just by checking out a spec sheet. The picture here will help give you a more clear sense of the sensor sizes in the SZ-31MR iHS and A7R III.

Clearly, both of those cameras posses different megapixels and different sensor sizes. The SZ-31MR iHS using its smaller sensor is going to make shooting shallower DOF tougher and the Sony A7R III will provide extra detail because of its extra 26 Megapixels. Greater resolution will let you crop pics somewhat more aggressively. The more aged SZ-31MR iHS will be behind in sensor innovation.