Sony A100 vs Sony A57

Here is a extensive review of the Sony A100 vs Sony A57, both Entry-Level DSLR cameras and both are offered by Sony. There is a crucial difference among the image resolutions of the A100 (10MP) and A57 (16MP) but both cameras provide the same sensor sizing (APS-C).

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The A100 was launched 7 years prior to the A57 and that is a fairly serious gap as far as camera tech is concerned. Both of these cameras have the same body design (Compact SLR).

Before going into a detailed comparison, here is a concise introduction of how the A100 grades vs the A57 in regards to portability, imaging, features and an overall rating.

Following is a sample of the gallery pics for Sony Alpha DSLR-A100 and Sony SLT-A57. The complete galleries are available at Sony A100 Gallery and Sony A57 Gallery.

When you are going to carry your camera, you will have to take into account its weight and dimensions. The Sony A100 features physical measurements of 133mm x 95mm x 71mm (5.2" x 3.7" x 2.8") accompanied by a weight of 638 grams (1.41 lbs) whilst the Sony A57 has dimensions 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 Sony A100 vs Sony A57 in the new Camera with Lens Size Comparison Tool.

Do not forget, the weight of an Interchangeable Lens Camera will change dependant on the lens you are utilizing at that time. The following is a front view size comparison of the A100 compared to the A57.

Using size and weight, the portability grade of the A100 and A57 is 64 and 64 respectively.

Usually, it can be difficult to visualize the gap in sensor sizing merely by seeing specifications. The visual underneath might provide you a more clear sense of the sensor measurements in the A100 and A57.

To sum up, both of the cameras provide the same sensor dimensions but different MP. You should expect to see the Sony A57 to show extra detail utilizing its extra 6 Megapixels. Greater resolution can also enable you to crop images more aggressively. The older A100 will be behind in sensor tech.