Sigma DP2 vs Sony TX7

Let's look closer at the Sigma DP2 versus Sony TX7, one is a Large Sensor Compact and the other is a Ultracompact by rivals Sigma and Sony. There is a huge difference between the resolutions of the DP2 (5MP) and TX7 (10MP) and the DP2 (APS-C) and TX7 (1/2.4") provide different sensor sizes.

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The DP2 was launched 3 months prior to the TX7 and they are of a similar generation. Both the cameras have different body design with the Sigma DP2 being a Large Sensor Compact camera and the Sony TX7 being a Ultracompact camera.

Before diving right into a thorough comparison, here is a concise overview of how the DP2 matches up vs the TX7 when considering portability, imaging, features and an overall score.

Following is a sample of the gallery pics for Sigma DP2 and Sony Cyber-shot DSC-TX7. The complete galleries are available at Sigma DP2 Gallery and Sony TX7 Gallery.

If you are going to carry around your camera, you're going to have to think about its weight and proportions. The Sigma DP2 has physical measurements of 113mm x 60mm x 56mm (4.4" x 2.4" x 2.2") and a weight of 280 grams (0.62 lbs) whilst the Sony TX7 has measurements of 98mm x 60mm x 18mm (3.9" x 2.4" x 0.7") accompanied by a weight of 149 grams (0.33 lbs).

Contrast the Sigma DP2 versus Sony TX7 in the new Camera and Lens Size Comparison Tool.

Take into consideration, the weight of an Interchangeable Lens Camera will differ dependant on the lens you are working with at the time. Below is a front view measurement comparison of the DP2 against the TX7.

Factoring in size and weight, the portability grade of the DP2 and TX7 is 86 and 95 respectively.

Generally, it is very tough to visualize the difference between sensor sizes just by checking specifications. The picture below will help provide you a more clear sense of the sensor sizing in the DP2 and TX7.

To sum up, each of the cameras have different megapixels and different sensor sizes. The DP2 because of its larger sensor is going to make achieving shallow depth of field simpler and the Sony TX7 will resolve extra detail utilizing its extra 5MP. Greater resolution can also enable you to crop photos a bit more aggressively.