Olympus SZ-15 vs Sony A7R III

Its time to look more closely at the Olympus SZ-15 versus Sony A7R III, one being a Small Sensor Superzoom and the latter is a Pro Mirrorless by competitors Olympus and Sony. There exists a crucial gap between the sensor resolutions of the SZ-15 (16MP) and A7R III (42MP) and the SZ-15 (1/2.3") and A7R III (Full frame) provide different sensor dimensions.

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The SZ-15 was manufactured 5 years earlier than the A7R III and that is quite a serious gap as far as technology is concerned. Both of the cameras have different body design with the Olympus SZ-15 being a Compact camera and the Sony A7R III being a SLR-style mirrorless camera.

Before delving right into a complete comparison, here is a brief view of how the SZ-15 matches up vs the A7R III when considering portability, imaging, features and an overall rating.

This is a preview of the gallery images for Olympus SZ-15 and Sony Alpha A7R III. The entire galleries are provided at Olympus SZ-15 Gallery and Sony A7R III Gallery.

For those who are aiming to carry your camera, you'll have to think about its weight and size. The Olympus SZ-15 offers exterior measurements of 108mm x 70mm x 40mm (4.3" x 2.8" x 1.6") and a weight of 250 grams (0.55 lbs) and the Sony A7R III has specifications 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-15 versus Sony A7R III in the new 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 the time. Below is a front view proportions comparison of the SZ-15 versus the A7R III.

Looking at dimensions and weight, the portability grade of the SZ-15 and A7R III is 88 and 63 respectively.

Normally, it is tough to visualize the difference between sensor sizing only by reading through specs. The graphic here may provide you a stronger sense of the sensor measurements in the SZ-15 and A7R III.

All in all, both cameras have different resolutions and different sensor sizing. The SZ-15 featuring a tinier sensor is going to make achieving shallower depth of field harder and the Sony A7R III will give you greater detail due to its extra 26MP. Higher resolution will also enable you to crop shots a bit more aggressively. The older SZ-15 is going to be behind when it comes to sensor innovation.