Sony NEX-3 vs Sony A57

The following is a comprehensive analysis of the Sony NEX-3 vs Sony A57, former is a Entry-Level Mirrorless while the latter is a Entry-Level DSLR and both are sold by Sony. The image resolution of the NEX-3 (14MP) and the A57 (16MP) is pretty well matched and they enjoy the same exact sensor dimensions (APS-C).

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The NEX-3 was released 3 years prior to the A57 which is quite a big difference as far as tech is concerned. Both cameras offer different body type with the Sony NEX-3 being a Rangefinder-style mirrorless camera and the Sony A57 being a Compact SLR camera.

Before going in to a more detailed comparison, below is a brief synopsis of how the NEX-3 matches up versus the A57 in relation to portability, imaging, features and an overall mark.

Below is a preview of the gallery images for Sony Alpha NEX-3 & Sony SLT-A57. The complete galleries are available at Sony NEX-3 Gallery & Sony A57 Gallery.

When you are looking to travel with your camera often, you have to think about its weight and proportions. The Sony NEX-3 enjoys exterior measurements of 117mm x 62mm x 33mm (4.6" x 2.4" x 1.3") accompanied by a weight of 297 grams (0.65 lbs) while the Sony A57 has measurements of 132mm x 98mm x 81mm (5.2" x 3.9" x 3.2") with a weight of 618 grams (1.36 lbs).

Contrast the Sony NEX-3 vs Sony A57 in our newest Camera & Lens Size Comparison Tool.

Always remember, the weight of an ILC will change dependant on the lens you have chosen at that time. The following is the front view dimensions comparison of the NEX-3 and the A57.

Looking at size and weight, the portability score of the NEX-3 and A57 is 89 and 64 respectively.

In many cases, its difficult to visualize the gap between sensor dimensions merely by checking technical specs. The pic underneath may provide you a greater sense of the sensor measurements in the NEX-3 and A57.

As you have seen, each of these cameras offer the same exact sensor sizing albeit different resolution. You can expect the Sony A57 to give you extra detail as a result of its extra 2 Megapixels. Higher resolution can also help you crop shots a little more aggressively. The more aged NEX-3 is going to be behind in sensor tech.