Panasonic GH4 vs Sony A7 III

Here, we are analyzing the Panasonic GH4 and Sony A7 III, both Pro Mirrorless digital cameras by rivals Panasonic and Sony. There exists a sizeable gap between the resolutions of the GH4 (16MP) and A7 III (24MP) and the GH4 (Four Thirds) and A7 III (Full frame) have totally different sensor size.

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The GH4 was brought out 5 years prior to the A7 III and that is quite a large gap as far as technology is concerned. The two cameras feature the same body design (SLR-style mirrorless).

Before delving straight to a comprehensive comparison, here is a simple view of how the GH4 grades against the A7 III in terms of portability, imaging, features and an overall rating.

Following is a sample of the gallery pictures for Panasonic Lumix DMC-GH4 and Sony Alpha A7 III. The entire galleries are viewable at Panasonic GH4 Gallery and Sony A7 III Gallery.

If you are looking to carry your camera regularly, you need to consider its weight and volume. The Panasonic GH4 has outer dimensions of 133mm x 93mm x 84mm (5.2" x 3.7" x 3.3") and a weight of 560 grams (1.23 lbs) whilst the Sony A7 III has sizing of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") and a weight of 650 grams (1.43 lbs).

Look at the Panasonic GH4 and Sony A7 III in the new Camera and Lens Size Comparison Tool.

Always remember, the weight of an Interchangeable Lens Camera will change dependant on the lens you are utilising at that time. Below is a front view size comparison of the GH4 compared to the A7 III.

Taking into account dimensions and weight, the portability score of the GH4 and A7 III is 66 and 63 respectively.

Typically, it is very difficult to see the difference between sensor sizing simply by reviewing a spec sheet. The graphic here will help give you a more clear sense of the sensor sizes in the GH4 and A7 III.

As you can see, the 2 cameras feature different resolutions and different sensor sizing. The GH4 due to its tinier sensor will make achieving shallow depth of field tougher and the Sony A7 III will offer more detail having its extra 8MP. Greater resolution can also help you crop photos way more aggressively. The older GH4 is going to be behind when it comes to sensor technology.