Panasonic G1 vs Sony A7R III

Here is a extensive comparison of the Panasonic G1 and Sony A7R III, one being a Entry-Level Mirrorless and the other is a Pro Mirrorless by competitors Panasonic and Sony. There is a sizeable difference between the resolutions of the G1 (12MP) and A7R III (42MP) and the G1 (Four Thirds) and A7R III (Full frame) feature different sensor sizing.

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The G1 was launched 9 years before the A7R III and that is quite a large gap as far as tech is concerned. Both the cameras offer the identical body type (SLR-style mirrorless).

Before we go through a more detailed comparison, below is a quick summary of how the G1 matches up versus the A7R III with regard to portability, imaging, features and an overall rating.

Here is a sample of the gallery pictures for Panasonic Lumix DMC-G1 and Sony Alpha A7R III. The complete galleries are provided at Panasonic G1 Gallery and Sony A7R III Gallery.

When you are intending to carry your camera regularly, you're going to have to take into account its weight and dimensions. The Panasonic G1 provides outer measurements of 124mm x 84mm x 45mm (4.9" x 3.3" x 1.8") having a weight of 360 grams (0.79 lbs) whilst the Sony A7R III has dimensions of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") having a weight of 657 grams (1.45 lbs).

Analyze the Panasonic G1 and Sony A7R III in the new Camera and Lens Size Comparison Tool.

Bear in mind, the weight of an Interchangeable Lens Camera will differ based on the lens you have attached at the time. The following is the front view overall size comparison of the G1 against the A7R III.

Factoring in size and weight, the portability rating of the G1 and A7R III is 82 and 63 respectively.

In many cases, it can be difficult to picture the contrast between sensor sizing simply by checking a spec sheet. The photograph underneath should give you a far better sense of the sensor measurements in the G1 and A7R III.

As you can see, both cameras enjoy different resolutions and different sensor sizing. The G1 featuring a tinier sensor is going to make shooting shallower DOF harder and the Sony A7R III will resolve extra detail utilizing its extra 30 Megapixels. Greater resolution can also allow you to crop photos far more aggressively. The older G1 is going to be behind when it comes to sensor tech.