Sony A7S vs Sony A9

Here, we will be looking at the Sony A7S vs Sony A9, both Pro Mirrorless cameras and both of them are created by Sony. There is a big difference among the resolutions of the A7S (12MP) and A9 (24MP) but both cameras provide the identical sensor sizes (Full frame).

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The A7S was introduced 4 years before the A9 and that is a fairly big gap as far as camera tech is concerned. Both the cameras feature the same body design (SLR-style mirrorless).

Before delving straight to a comprehensive comparison, here is a quick summary of how the A7S matches up versus the A9 with regards to portability, imaging, features and an overall rating.

The following is a preview of the gallery images for Sony Alpha A7S and Sony Alpha A9. The whole galleries are provided at Sony A7S Gallery and Sony A9 Gallery.

In case you're looking to carry your camera often, you're going to have to factor its weight and dimensions. The Sony A7S features outer dimensions of 127mm x 94mm x 48mm (5.0" x 3.7" x 1.9") having a weight of 489 grams (1.08 lbs) while the Sony A9 has dimensions of 127mm x 96mm x 63mm (5.0" x 3.8" x 2.5") with a weight of 673 grams (1.48 lbs).

Analyze the Sony A7S vs Sony A9 in the latest Camera and Lens Size Comparison Tool.

Always remember, the weight of an Interchangeable Lens Camera will change based on the lens you select at that time. Below is a front view overall size comparison of the A7S against the A9.

Factoring in size and weight, the portability rating of the A7S and A9 is 77 and 65 respectively.

In many cases, it is tough to see the difference in sensor sizing merely by viewing technical specs. The visual below might offer you a more clear sense of the sensor sizes in the A7S and A9.

As you can tell, the two cameras feature the identical sensor size albeit not the same MP. You should expect the Sony A9 to provide you with greater detail using its extra 12 Megapixels. Higher resolution will enable you to crop pictures way more aggressively. The older A7S will be disadvantaged when it comes to sensor technology.