Sony A7 vs Sony A7S III

The following is a extensive analysis of the Sony A7 versus Sony A7S III, both Pro Mirrorless digital cameras and both are built by Sony. There is a noticeable difference between the sensor resolutions of the A7 (24MP) and A7S III (12MP) but they come with the same exact sensor sizing (Full frame).

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The A7 was manufactured 7 years earlier than the A7S III which is quite a sizable difference as far as tech is concerned. Both of these cameras offer the identical body type (SLR-style mirrorless).

Before we go straight into a step-by-step comparison, below is a concise summation of how the A7 grades against the A7S III when considering portability, imaging, features and an overall mark.

The following is a sample of the gallery pics for Sony Alpha A7 & Sony Alpha A7S III. The entire galleries are provided at Sony A7 Gallery & Sony A7S III Gallery.

For anyone who is going to travel with your camera, you have to consider its weight and proportions. The Sony A7 enjoys exterior measurements of 127mm x 94mm x 48mm (5.0" x 3.7" x 1.9") accompanied by a weight of 474 grams (1.04 lbs) while the Sony A7S III has measurements of 129mm x 97mm x 81mm (5.1" x 3.8" x 3.2") accompanied by a weight of 699 grams (1.54 lbs).

Examine the Sony A7 versus Sony A7S III in our completely new Camera plus Lens Size Comparison Tool.

Always remember, the weight of an ILC will vary based on the lens you choose at the time. Here is the front view scale comparison of the A7 versus the A7S III.

Factoring in size and weight, the portability rating of the A7 and A7S III is 78 and 61 respectively.

Oftentimes, it's tough to visualize the contrast between sensor dimensions simply by looking at a spec sheet. The image here might provide you a far better sense of the sensor measurements in the A7 and A7S III.

As you can see, the two cameras enjoy the same exact sensor sizing but different MP. You can expect to see the Sony A7 to give extra detail due to its extra 12 Megapixels. Greater resolution can also make it easier to crop photos far more aggressively. The more aged A7 is going to be disadvantaged in sensor tech.