Samsung ST90 vs Sony A55

On this page, we are reviewing the Samsung ST90 versus Sony A55, former is a Ultracompact while the other is a Entry-Level DSLR by rivals Samsung and Sony. The resolution of the ST90 (14MP) and the A55 (16MP) is fairly similar but the ST90 (1/2.3") and A55 (APS-C) boast totally different sensor dimensions.

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The ST90 was introduced 5 months after the A55 and they are of a similar age. Both the cameras have different body design with the Samsung ST90 being a Ultracompact camera and the Sony A55 being a Compact SLR camera.

Before getting right into a in depth comparison, here is a brief overview of how the ST90 grades versus the A55 when considering portability, imaging, features and an overall score.

The following is a sample of the gallery pictures for Samsung ST90 & Sony SLT-A55. The whole galleries are viewable at Samsung ST90 Gallery & Sony A55 Gallery.

For those who are intending to carry around your camera, you are going to need to consider its weight and dimensions. The Samsung ST90 offers exterior measurements of 92mm x 53mm x 17mm (3.6" x 2.1" x 0.7") having a weight of n/a grams (0.00 lbs) whilst the Sony A55 has dimensions of 124mm x 92mm x 85mm (4.9" x 3.6" x 3.3") having a weight of 500 grams (1.10 lbs).

Analyze the Samsung ST90 versus Sony A55 in our brand new Camera plus Lens Size Comparison Tool.

Bear in mind, the weight of an ILC will vary dependant on the lens you are utilising at the time. The following is a front view dimensions comparison of the ST90 compared to the A55.

Looking at dimensions and weight, the portability grade of the ST90 and A55 is 99 and 67 respectively.

Quite often, it's difficult to see the gap between sensor sizes simply by going over specs. The pic here may give you a greater sense of the sensor measurements in the ST90 and A55.

As you can plainly see, both of the cameras have different resolutions and different sensor sizes. The ST90 using its tinier sensor will make getting shallow DOF more difficult and the Sony A55 will offer more detail using its extra 2MP. Greater resolution can also make it easier to crop photos a bit more aggressively.