Olympus E-30 vs Sony A7R III

Here is a extensive analysis of the Olympus E-30 and Sony A7R III, one being a Advanced DSLR and the latter is a Pro Mirrorless by rivals Olympus and Sony. There exists a significant gap between the resolutions of the E-30 (12MP) and A7R III (42MP) and the E-30 (Four Thirds) and A7R III (Full frame) offer different sensor dimensions.

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The E-30 was launched 9 years before the A7R III and that is quite a sizable gap as far as technology is concerned. Each of these cameras have different body design with the Olympus E-30 being a Mid-size SLR camera and the Sony A7R III being a SLR-style mirrorless camera.

Before we go straight to a complete comparison, here is a short summary of how the E-30 grades vs the A7R III in relation to portability, imaging, features and an overall rating.

Below is a preview of the gallery images for Olympus E-30 and Sony Alpha A7R III. The complete galleries are provided at Olympus E-30 Gallery and Sony A7R III Gallery.

If you are intending to carry your camera frequently, you'll have to consider its weight and proportions. The Olympus E-30 has got outside measurements of 142mm x 108mm x 75mm (5.6" x 4.3" x 3.0") accompanied by a weight of 695 grams (1.53 lbs) while the Sony A7R III has measurements of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") along with a weight of 657 grams (1.45 lbs).

Compare the Olympus E-30 and Sony A7R III in the all new Camera with Lens Size Comparison Tool.

Take into account, the weight of an Interchangeable Lens Camera will vary based on the lens you select at that time. Following is a front view proportions comparison of the E-30 versus the A7R III.

Taking into account dimensions and weight, the portability rating of the E-30 and A7R III is 60 and 63 respectively.

Quite often, it's hard to visualize the gap between sensor sizing merely by reading through specs. The photograph below may provide you a stronger sense of the sensor measurements in the E-30 and A7R III.

All in all, each of these cameras provide different megapixel count and different sensor sizing. The E-30 featuring a tinier sensor is going to make shooting shallower DOF tougher and the Sony A7R III will give you greater detail utilizing its extra 30 Megapixels. Higher resolution can also let you crop pictures more aggressively. The older E-30 is going to be disadvantaged when it comes to sensor innovation.