Sony G3 vs Sony A57

Here, we will be comparing the Sony G3 versus Sony A57, one is a Small Sensor Compact and the latter is a Entry-Level DSLR and they are both manufactured by Sony. There exists a huge gap among the image resolutions of the G3 (10MP) and A57 (16MP) and the G3 (1/2.3") and A57 (APS-C) provide different sensor sizing.

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The G3 was manufactured 4 years prior to the A57 which is a fairly significant gap as far as camera technology is concerned. Both of the cameras feature different body design with the Sony G3 being a Compact camera and the Sony A57 being a Compact SLR camera.

Before we go into a in-depth comparison, here is a concise summation of how the G3 scores vs the A57 with regard to portability, imaging, features and an overall score.

The following is a preview of the gallery images for Sony Cyber-shot DSC-G3 and Sony SLT-A57. The entire galleries are viewable at Sony G3 Gallery and Sony A57 Gallery.

When you are going to carry around your camera often, you will want to factor in its weight and size. The Sony G3 enjoys outer dimensions of 97mm x 59mm x 22mm (3.8" x 2.3" x 0.9") along with a weight of 185 grams (0.41 lbs) while the Sony A57 has specifications of 132mm x 98mm x 81mm (5.2" x 3.9" x 3.2") and a weight of 618 grams (1.36 lbs).

Analyze the Sony G3 versus Sony A57 in the new Camera and Lens Size Comparison Tool.

Keep in mind, the weight of an Interchangeable Lens Camera will differ dependant on the lens you are employing at the time. Underneath is a front view proportions comparison of the G3 and the A57.

Factoring in dimensions and weight, the portability score of the G3 and A57 is 94 and 64 respectively.

Sometimes, it is difficult to picture the difference in sensor sizes simply by looking through technical specs. The image below may provide you a stronger sense of the sensor dimensions in the G3 and A57.

As you have seen, both of the cameras come with different megapixel count and different sensor sizes. The G3 because of its smaller sensor is going to make achieving shallow depth of field harder and the Sony A57 will provide you with greater detail due to its extra 6MP. Higher resolution will also let you crop photographs a good deal more aggressively. The more aged G3 will be behind when it comes to sensor tech.