Sigma DP2s vs Sony A550

Let's look a little more closely at the Sigma DP2s and Sony A550, one being a Large Sensor Compact and the other is a Entry-Level DSLR by brands Sigma and Sony. There exists a sizeable gap between the sensor resolutions of the DP2s (5MP) and A550 (14MP) but both cameras have the same sensor sizing (APS-C).

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The DP2s was announced 3 months later than the A550 which means that they are both of a similar generation. Both of the cameras have different body design with the Sigma DP2s being a Large Sensor Compact camera and the Sony A550 being a Compact SLR camera.

Before going into a thorough comparison, here is a simple introduction of how the DP2s matches up against the A550 with respect to portability, imaging, features and an overall rating.

Following is a sample of the gallery pics for Sigma DP2s and Sony Alpha DSLR-A550. The whole galleries are viewable at Sigma DP2s Gallery and Sony A550 Gallery.

If you are aiming to carry your camera frequently, you will want to factor its weight and volume. The Sigma DP2s provides external dimensions of 113mm x 60mm x 56mm (4.4" x 2.4" x 2.2") and a weight of 280 grams (0.62 lbs) while the Sony A550 has sizing of 137mm x 104mm x 84mm (5.4" x 4.1" x 3.3") and a weight of 632 grams (1.39 lbs).

Examine the Sigma DP2s and Sony A550 in the new Camera with Lens Size Comparison Tool.

Bear in mind, the weight of an Interchangeable Lens Camera will differ based on the lens you use at that time. Below is a front view size comparison of the DP2s versus the A550.

Looking at dimensions and weight, the portability rating of the DP2s and A550 is 86 and 63 respectively.

Normally, it is very difficult to visualize the gap between sensor sizing simply by reading through technical specs. The visual underneath will offer you a more clear sense of the sensor sizes in the DP2s and A550.

As you can tell, both of the cameras provide the same sensor dimensions but different resolution. You should expect to see the Sony A550 to give extra detail with its extra 9 Megapixels. Greater resolution can also allow you to crop images more aggressively.