Sigma SD15 vs Sony A58

Here, we will be matching up the Sigma SD15 and Sony A58, one is a Advanced DSLR and the latter is a Entry-Level DSLR by rivals Sigma and Sony. There is a sizeable difference among the resolutions of the SD15 (5MP) and A58 (20MP) but both cameras provide the identical sensor sizing (APS-C).

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The SD15 was unveiled 4 years earlier than the A58 which is a fairly large gap as far as camera tech is concerned. Both of these cameras feature different body design with the Sigma SD15 being a Mid-size SLR camera and the Sony A58 being a Compact SLR camera.

Before diving straight to a more detailed comparison, here is a brief overview of how the SD15 grades versus the A58 in terms of portability, imaging, features and an overall score.

The following is a preview of the gallery photos for Sigma SD15 and Sony SLT-A58. The full galleries are viewable at Sigma SD15 Gallery and Sony A58 Gallery.

If you are going to carry around your camera, you should think about its weight and volume. The Sigma SD15 enjoys exterior dimensions of 144mm x 107mm x 81mm (5.7" x 4.2" x 3.2") accompanied by a weight of 750 grams (1.65 lbs) while the Sony A58 has sizing of 129mm x 95mm x 78mm (5.1" x 3.7" x 3.1") accompanied by a weight of 492 grams (1.08 lbs).

Analyze the Sigma SD15 and Sony A58 in the latest Camera and Lens Size Comparison Tool.

Keep in mind, the weight of an Interchangeable Lens Camera will differ based on the lens you are utilizing at that time. Following is a front view over all size comparison of the SD15 against the A58.

Using size and weight, the portability rating of the SD15 and A58 is 59 and 68 respectively.

Generally, its hard to picture the gap in sensor sizes only by looking through specifications. The image below will help give you a much better sense of the sensor dimensions in the SD15 and A58.

Plainly, each of the cameras come with the identical sensor size albeit different megapixels. You should count on the Sony A58 to render greater detail having an extra 15MP. Higher resolution will also enable you to crop pictures a good deal more aggressively. The more aged SD15 will be disadvantaged in sensor tech.