Olympus TG-2 iHS vs Sony A7R III

Its time to look a bit more closely at the Olympus TG-2 iHS and Sony A7R III, one is a Waterproof and the latter is a Pro Mirrorless by manufacturers Olympus and Sony. There exists a significant gap between the resolutions of the TG-2 iHS (12MP) and A7R III (42MP) and the TG-2 iHS (1/2.3") and A7R III (Full frame) use totally different sensor dimensions.

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The TG-2 iHS was released 5 years before the A7R III which is quite a sizable gap as far as technology is concerned. Both cameras come with different body type with the Olympus TG-2 iHS being a Compact camera and the Sony A7R III being a SLR-style mirrorless camera.

Before diving through a more detailed comparison, below is a quick summation of how the TG-2 iHS matches up against the A7R III in relation to portability, imaging, features and an overall mark.

The following is a preview of the gallery images for Olympus Tough TG-2 iHS and Sony Alpha A7R III. The complete galleries are provided at Olympus TG-2 iHS Gallery and Sony A7R III Gallery.

In case you're planning to travel with your camera often, you'll have to think about its weight and size. The Olympus TG-2 iHS provides exterior dimensions of 111mm x 67mm x 29mm (4.4" x 2.6" x 1.1") accompanied by a weight of 230 grams (0.51 lbs) while the Sony A7R III has specifications of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") with a weight of 657 grams (1.45 lbs).

Take a look at the Olympus TG-2 iHS and Sony A7R III in the new Camera and Lens Size Comparison Tool.

Always remember, the weight of an Interchangeable Lens Camera will change depending on the lens you have attached at that time. Below is the front view sizing comparison of the TG-2 iHS versus the A7R III.

Looking at dimensions and weight, the portability grade of the TG-2 iHS and A7R III is 91 and 63 respectively.

Normally, it's hard to see the difference between sensor dimensions simply by checking a spec sheet. The image underneath might give you a much better sense of the sensor sizes in the TG-2 iHS and A7R III.

Clearly, both cameras have got different megapixels and different sensor dimensions. The TG-2 iHS featuring a tinier sensor will make achieving bokeh more challenging and the Sony A7R III will resolve more detail as a result of its extra 30MP. Higher resolution can also make it easier to crop shots much more aggressively. The more aged TG-2 iHS is going to be disadvantaged in sensor innovation.