Samsung ST100 vs Sony A55

Lets take a closer look at the Samsung ST100 vs Sony A55, former being a Ultracompact while the latter is a Entry-Level DSLR by companies Samsung and Sony. The image resolution of the ST100 (14MP) and the A55 (16MP) is pretty close but the ST100 (1/2.3") and A55 (APS-C) have different sensor sizes.

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The ST100 was brought out 7 months before the A55 and they are both of a similar age. Each of these cameras feature different body design with the Samsung ST100 being a Ultracompact camera and the Sony A55 being a Compact SLR camera.

Before getting right into a complete comparison, here is a short view of how the ST100 grades versus the A55 with regards to portability, imaging, features and an overall grade.

The following is a preview of the gallery images for Samsung ST100 & Sony SLT-A55. The entire galleries are available at Samsung ST100 Gallery & Sony A55 Gallery.

For those who are looking to lug around your camera regularly, you will need to factor its weight and measurements. The Samsung ST100 features physical measurements of 100mm x 60mm x 20mm (3.9" x 2.4" x 0.8") having a weight of 155 grams (0.34 lbs) and the Sony A55 has proportions of 124mm x 92mm x 85mm (4.9" x 3.6" x 3.3") along with a weight of 500 grams (1.10 lbs).

Take a look at the Samsung ST100 vs Sony A55 in our brand new Camera & Lens Size Comparison Tool.

Take into account, the weight of an ILC will change dependant on the lens you choose at that time. Here is a front view measurements comparison of the ST100 against the A55.

Taking into consideration size and weight, the portability rating of the ST100 and A55 is 95 and 67 respectively.

Oftentimes, it is very hard to picture the contrast in sensor measurements purely by viewing technical specs. The photograph below will give you a far better sense of the sensor measurements in the ST100 and A55.

As you can tell, both of those cameras come with different megapixel count and different sensor measurements. The ST100 due to its smaller sensor is going to make achieving shallow DOF more difficult and the Sony A55 will provide you with more detail having its extra 2MP. Higher resolution will help you crop shots a good deal more aggressively. The older ST100 will be disadvantaged when it comes to sensor tech.