Sigma SD10 vs Sony A550

On this page, we will be matching up the Sigma SD10 vs Sony A550, one is a Advanced DSLR and the latter is a Entry-Level DSLR by companies Sigma and Sony. There is a big difference between the image resolutions of the SD10 (3MP) and A550 (14MP) but both cameras provide the same sensor sizes (APS-C).

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The SD10 was released 6 years before the A550 which is quite a big gap as far as tech is concerned. The two cameras have different body design with the Sigma SD10 being a Mid-size SLR camera and the Sony A550 being a Compact SLR camera.

Before diving right into a full comparison, here is a simple highlight of how the SD10 grades versus the A550 in relation to portability, imaging, features and an overall mark.

Below is a preview of the gallery photos for Sigma SD10 and Sony Alpha DSLR-A550. The complete galleries are viewable at Sigma SD10 Gallery and Sony A550 Gallery.

For those who are looking to travel with your camera, you are going to need to consider its weight and proportions. The Sigma SD10 enjoys outside measurements of 152mm x 120mm x 79mm (6.0" x 4.7" x 3.1") with a weight of 950 grams (2.09 lbs) whilst the Sony A550 has measurements of 137mm x 104mm x 84mm (5.4" x 4.1" x 3.3") accompanied by a weight of 632 grams (1.39 lbs).

Take a look at the Sigma SD10 vs Sony A550 in the latest Camera with Lens Size Comparison Tool.

Remember, the weight of an Interchangeable Lens Camera will change dependant on the lens you select during that time. Following is a front view size comparison of the SD10 versus the A550.

Looking at size and weight, the portability grade of the SD10 and A550 is 54 and 63 respectively.

Oftentimes, it can be difficult to see the gap between sensor dimensions purely by reading a spec sheet. The picture below may give you a far better sense of the sensor sizing in the SD10 and A550.

As you can see, the 2 cameras have the same sensor dimensions albeit not the same resolution. You should count on the Sony A550 to deliver extra detail as a result of its extra 11MP. Higher resolution can also allow you to crop shots a bit more aggressively. The more aged SD10 is going to be behind in sensor innovation.