Sony A7S III vs Sony NEX-7

On this page, we will be analyzing the Sony A7S III and Sony NEX-7, former being a Pro Mirrorless while the latter is a Advanced Mirrorless and both of them are built by Sony. There is a considerable difference among the sensor resolutions of the A7S III (12MP) and NEX-7 (24MP) and the A7S III (Full frame) and NEX-7 (APS-C) boast totally different sensor size.

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The A7S III was revealed 8 years later than the NEX-7 and that is a fairly large difference as far as camera tech is concerned. Both the cameras have different body design with the Sony A7S III being a SLR-style mirrorless camera and the Sony NEX-7 being a Rangefinder-style mirrorless camera.

Before getting straight to a detailed comparison, here is a simple highlight of how the A7S III matches up versus the NEX-7 in relation to portability, imaging, features and an overall grade.

Here is a preview of the gallery photos for Sony Alpha A7S III & Sony Alpha NEX-7. The full galleries are available at Sony A7S III Gallery & Sony NEX-7 Gallery.

For anyone who is looking to lug around your camera regularly, you should take into account its weight and dimensions. The Sony A7S III has physical dimensions of 129mm x 97mm x 81mm (5.1" x 3.8" x 3.2") with a weight of 699 grams (1.54 lbs) while the Sony NEX-7 has dimensions of 120mm x 67mm x 43mm (4.7" x 2.6" x 1.7") and a weight of 400 grams (0.88 lbs).

See the Sony A7S III and Sony NEX-7 in our completely new Camera plus Lens Size Comparison Tool.

Remember that, the weight of an ILC will differ based on the lens you are utilising at that time. Following is a front view measurement comparison of the A7S III compared to the NEX-7.

Using size and weight, the portability grade of the A7S III and NEX-7 is 61 and 84 respectively.

Often, it's hard to visualise the difference in sensor measurements just by going through specifications. The photograph here may provide you a far better sense of the sensor sizes in the A7S III and NEX-7.

To sum up, both of the cameras provide different resolutions and different sensor measurements. The A7S III using its bigger sensor will make getting shallow depth of field simpler and the Sony NEX-7 will provide extra detail because of its extra 12MP. Higher resolution can also allow you to crop photographs more aggressively. The more modern A7S III will have an advantage with regard to sensor tech.