Olympus TG-320 vs Sony A57

Let's take a deeper look at the Olympus TG-320 and Sony A57, former being a Waterproof while the other is a Entry-Level DSLR by rivals Olympus and Sony. The sensor resolution of the TG-320 (14MP) and the A57 (16MP) is very well matched but the TG-320 (1/2.3") and A57 (APS-C) enjoy totally different sensor dimensions.

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The TG-320 was announced 8 months prior to the A57 and they are both of a similar age. Each of the cameras come with different body type with the Olympus TG-320 being a Compact camera and the Sony A57 being a Compact SLR camera.

Before going through a in-depth comparison, below is a concise summation of how the TG-320 grades versus the A57 when it comes to portability, imaging, features and an overall rating.

Here is a sample of the gallery pics for Olympus TG-320 & Sony SLT-A57. The whole galleries are provided at Olympus TG-320 Gallery & Sony A57 Gallery.

For anybody who is going to carry your camera often, you should take into account its weight and proportions. The Olympus TG-320 comes with external dimensions of 96mm x 63mm x 23mm (3.8" x 2.5" x 0.9") having a weight of 155 grams (0.34 lbs) whilst 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).

Compare the Olympus TG-320 and Sony A57 in our newest Camera plus Lens Size Comparison Tool.

Take into account, the weight of an ILC will vary based on the lens you are employing at the time. The following is the front view measurements comparison of the TG-320 and the A57.

Taking into consideration size and weight, the portability grade of the TG-320 and A57 is 94 and 64 respectively.

Oftentimes, it can be difficult to visualise the difference between sensor sizing merely by looking at a spec sheet. The visual below may provide you a clearer sense of the sensor dimensions in the TG-320 and A57.

Clearly, the two cameras posses different resolutions and different sensor sizing. The TG-320 with its tinier sensor will make achieving shallow depth of field tougher and the Sony A57 will give extra detail with its extra 2 Megapixels. Greater resolution will let you crop images somewhat more aggressively. The older TG-320 is going to be disadvantaged with regard to sensor tech.