Sony A7S II vs Sony A9

Below, we are evaluating the Sony A7S II versus Sony A9, both Pro Mirrorless digital cameras and both of them are created by Sony. There exists a crucial gap between the sensor resolutions of the A7S II (12MP) and A9 (24MP) but they possess the exact same sensor sizes (Full frame).

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The A7S II was manufactured 18 months earlier than the A9 making the cameras a generation apart from one another. Each of these cameras come with the identical body type (SLR-style mirrorless).

Before delving in to a in-depth comparison, below is a brief summation of how the A7S II scores versus the A9 with regards to portability, imaging, features and an overall rating.

Below is a sample of the gallery pics for Sony Alpha A7S II and Sony Alpha A9. The entire galleries are available at Sony A7S II Gallery and Sony A9 Gallery.

If you're planning to carry your camera often, you will have to consider its weight and size. The Sony A7S II has got exterior dimensions of 127mm x 96mm x 60mm (5.0" x 3.8" x 2.4") along with a weight of 627 grams (1.38 lbs) while the Sony A9 has specifications of 127mm x 96mm x 63mm (5.0" x 3.8" x 2.5") along with a weight of 673 grams (1.48 lbs).

Compare the Sony A7S II versus Sony A9 in the all new Camera with Lens Size Comparison Tool.

Don't forget, the weight of an Interchangeable Lens Camera will change depending on the lens you are utilizing at that time. Here is the front view proportions comparison of the A7S II against the A9.

Using dimensions and weight, the portability grade of the A7S II and A9 is 68 and 65 respectively.

More often than not, it's tough to see the gap between sensor sizing only by reading technical specs. The visual here may give you a clearer sense of the sensor dimensions in the A7S II and A9.

As you have seen, both the cameras posses the exact same sensor measurements but not the same resolution. You should expect to see the Sony A9 to deliver greater detail due to its extra 12MP. Greater resolution will enable you to crop photos somewhat more aggressively. The older A7S II is going to be behind with regard to sensor tech.