Sony T90 vs Sony A55

Lets look much closer at the Sony T90 vs Sony A55, one being a Ultracompact and the other is a Entry-Level DSLR and they are both manufactured by Sony. There exists a big gap among the sensor resolutions of the T90 (12MP) and A55 (16MP) and the T90 (1/2.3") and A55 (APS-C) feature different sensor dimensions.

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The T90 was brought out 18 months earlier than the A55 making the cameras a generation apart from one another. The two cameras come with different body type with the Sony T90 being a Ultracompact camera and the Sony A55 being a Compact SLR camera.

Before going straight into a detailed comparison, below is a quick overview of how the T90 scores versus the A55 in terms of portability, imaging, features and an overall grade.

Here is a sample of the gallery pics for Sony Cyber-shot DSC-T90 and Sony SLT-A55. The entire galleries are provided at Sony T90 Gallery and Sony A55 Gallery.

If you are planning to lug around your camera regularly, you're going to have to consider its weight and size. The Sony T90 features external dimensions of 94mm x 57mm x 15mm (3.7" x 2.2" x 0.6") along with a weight of 148 grams (0.33 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).

Check out the Sony T90 vs Sony A55 in the new Camera and Lens Size Comparison Tool.

Bear in mind, the weight of an Interchangeable Lens Camera will differ based on the lens you select at that time. Below is the front view sizing comparison of the T90 vs the A55.

Taking into consideration dimensions and weight, the portability score of the T90 and A55 is 96 and 67 respectively.

Sometimes, it is hard to visualize the gap in sensor measurements just by viewing specs. The visual underneath might provide you a clearer sense of the sensor dimensions in the T90 and A55.

As you can plainly see, both of these cameras have got different megapixels and different sensor measurements. The T90 due to its smaller sensor is going to make achieving shallow DOF more difficult and the Sony A55 will result in extra detail having its extra 4MP. Greater resolution will also make it easier to crop images much more aggressively. The older T90 will be disadvantaged when it comes to sensor technology.