Sony A7S vs Sony A57

Below, we are evaluating the Sony A7S versus Sony A57, former being a Pro Mirrorless while the other is a Entry-Level DSLR and both are sold by Sony. There exists a substantial gap among the image resolutions of the A7S (12MP) and A57 (16MP) and the A7S (Full frame) and A57 (APS-C) enjoy totally different sensor size.

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The A7S was announced 19 months later than the A57 making the cameras a generation apart from one another. Each of these cameras come with different body type with the Sony A7S being a SLR-style mirrorless camera and the Sony A57 being a Compact SLR camera.

Before diving straight into a comprehensive comparison, below is a short highlight of how the A7S matches up vs the A57 with regard to portability, imaging, features and an overall grade.

The following is a sample of the gallery pics for Sony Alpha A7S & Sony SLT-A57. The whole galleries are provided at Sony A7S Gallery & Sony A57 Gallery.

If you are looking to lug around your camera, you'll need to think about its weight and dimensions. The Sony A7S comes with physical measurements of 127mm x 94mm x 48mm (5.0" x 3.7" x 1.9") accompanied by a weight of 489 grams (1.08 lbs) and the Sony A57 has dimensions of 132mm x 98mm x 81mm (5.2" x 3.9" x 3.2") accompanied by a weight of 618 grams (1.36 lbs).

Check the Sony A7S versus Sony A57 in our newest Camera & Lens Size Comparison Tool.

Don't forget, the weight of an ILC will vary depending on the lens you have at that moment. Underneath is the front view physical size comparison of the A7S against the A57.

Looking at dimensions and weight, the portability rating of the A7S and A57 is 77 and 64 respectively.

Sometimes, it's difficult to visualise the contrast in sensor measurements merely by checking out specifications. The graphic here might give you a stronger sense of the sensor measurements in the A7S and A57.

Plainly, both the cameras posses different megapixel count and different sensor measurements. The A7S having a larger sensor will make getting bokeh less difficult and the Sony A57 will show more detail with its extra 4MP. Greater resolution will let you crop photos somewhat more aggressively. The fresher A7S will have an edge in sensor tech.