Sigma DP1x vs Sony A550

Here, we will be analyzing the Sigma DP1x vs Sony A550, one being a Large Sensor Compact and the latter is a Entry-Level DSLR by competitors Sigma and Sony. There is a significant difference between the image resolutions of the DP1x (5MP) and A550 (14MP) but both cameras posses the identical sensor size (APS-C).

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The DP1x was announced 3 months later than the A550 and they are both of a similar generation. Both of these cameras feature different body design with the Sigma DP1x being a Large Sensor Compact camera and the Sony A550 being a Compact SLR camera.

Before we go straight to a in depth comparison, here is a quick view of how the DP1x scores versus the A550 in the way of portability, imaging, features and an overall grade.

This is a preview of the gallery images for Sigma DP1x and Sony Alpha DSLR-A550. The whole galleries are viewable at Sigma DP1x Gallery and Sony A550 Gallery.

When you are intending to lug around your camera, you're going to have to factor its weight and size. The Sigma DP1x offers physical measurements of 113mm x 60mm x 50mm (4.4" x 2.4" x 2.0") with a weight of 250 grams (0.55 lbs) whilst the Sony A550 has specifications of 137mm x 104mm x 84mm (5.4" x 4.1" x 3.3") accompanied by a weight of 632 grams (1.39 lbs).

See the Sigma DP1x vs Sony A550 in the latest Camera with Lens Size Comparison Tool.

Remember that, the weight of an Interchangeable Lens Camera will differ based on the lens you are using at the time. Following is a front view overall size comparison of the DP1x compared to the A550.

Taking into account size and weight, the portability grade of the DP1x and A550 is 88 and 63 respectively.

Generally, it's difficult to envision the contrast between sensor measurements simply by going over specifications. The visual below will help give you a more clear sense of the sensor measurements in the DP1x and A550.

To sum up, each of the cameras come with the identical sensor size albeit not the same megapixels. You should expect the Sony A550 to deliver greater detail with its extra 9 Megapixels. Higher resolution will enable you to crop photographs a good deal more aggressively.