Sigma Quattro vs Sony A57

Below, we are analyzing the Sigma Quattro versus Sony A57, one is a Advanced Mirrorless and the other is a Entry-Level DSLR by brands Sigma and Sony. There is a big difference between the sensor resolutions of the Quattro (29MP) and A57 (16MP) but they enjoy the exact same sensor sizes (APS-C).

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The Quattro was announced 3 years after the A57 which is quite a big gap as far as tech is concerned. Both the cameras come with different body type with the Sigma Quattro being a Rangefinder-style mirrorless camera and the Sony A57 being a Compact SLR camera.

Before getting through a thorough comparison, below is a simple highlight of how the Quattro grades vs the A57 in relation to portability, imaging, features and an overall score.

Here is a sample of the gallery pics for Sigma sd Quattro and Sony SLT-A57. The whole galleries are viewable at Sigma Quattro Gallery and Sony A57 Gallery.

For anybody who is planning to carry around your camera regularly, you will need to factor in its weight and measurements. The Sigma Quattro comes with external measurements of 147mm x 95mm x 91mm (5.8" x 3.7" x 3.6") having a weight of 625 grams (1.38 lbs) whilst the Sony A57 has proportions of 132mm x 98mm x 81mm (5.2" x 3.9" x 3.2") with a weight of 618 grams (1.36 lbs).

Check the Sigma Quattro versus Sony A57 in the new Camera and Lens Size Comparison Tool.

Do not forget, the weight of an Interchangeable Lens Camera will vary dependant on the lens you are working with during that time. Following is the front view size comparison of the Quattro versus the A57.

Considering size and weight, the portability score of the Quattro and A57 is 63 and 64 respectively.

Often, it's hard to picture the gap between sensor sizes merely by going over technical specs. The pic below should provide you a much better sense of the sensor sizing in the Quattro and A57.

As you can tell, each of these cameras have got the exact same sensor measurements but different resolution. You should expect to see the Sigma Quattro to deliver more detail with its extra 13 Megapixels. Greater resolution will also make it easier to crop pics much more aggressively. The fresher Quattro provides an advantage when it comes to sensor tech.