Olympus TG-320 vs Sony A55

In this write-up, we are evaluating the Olympus TG-320 versus Sony A55, one being a Waterproof and the other is a Entry-Level DSLR by manufacturers Olympus and Sony. The sensor resolution of the TG-320 (14MP) and the A55 (16MP) is very well matched but the TG-320 (1/2.3") and A55 (APS-C) feature different sensor measurements.

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The TG-320 was unveiled 17 months later than the A55 making the cameras a generation apart from each other. Each of the cameras offer different body type with the Olympus TG-320 being a Compact camera and the Sony A55 being a Compact SLR camera.

Before going through a in depth comparison, below is a brief overview of how the TG-320 scores versus the A55 when it comes to portability, imaging, features and an overall grade.

Following is a sample of the gallery pics for Olympus TG-320 and Sony SLT-A55. The full galleries are available at Olympus TG-320 Gallery and Sony A55 Gallery.

If you are planning to lug around your camera regularly, you have to think about its weight and size. The Olympus TG-320 has got exterior measurements of 96mm x 63mm x 23mm (3.8" x 2.5" x 0.9") with a weight of 155 grams (0.34 lbs) whilst the Sony A55 has specifications of 124mm x 92mm x 85mm (4.9" x 3.6" x 3.3") having a weight of 500 grams (1.10 lbs).

See the Olympus TG-320 versus Sony A55 in the latest Camera and Lens Size Comparison Tool.

Bear in mind, the weight of an Interchangeable Lens Camera will differ depending on the lens you are using at the time. Following is the front view overall size comparison of the TG-320 vs the A55.

Considering size and weight, the portability grade of the TG-320 and A55 is 94 and 67 respectively.

Usually, it can be difficult to picture the contrast between sensor measurements merely by checking specifications. The photograph below may give you a far better sense of the sensor sizing in the TG-320 and A55.

To sum up, both of these cameras enjoy different megapixels and different sensor measurements. The TG-320 with its tinier sensor is going to make achieving bokeh tougher and the Sony A55 will give extra detail having an extra 2MP. Greater resolution can also allow you to crop photos far more aggressively. The newer TG-320 provides a benefit with regard to sensor tech.