Sigma DP2 Quattro vs Sony A390

Following is a in-depth assessment of the Sigma DP2 Quattro and Sony A390, one is a Large Sensor Compact and the other is a Entry-Level DSLR by rivals Sigma and Sony. There exists a crucial gap between the resolutions of the DP2 Quattro (20MP) and A390 (14MP) but they come with the exact same sensor sizes (APS-C).

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The DP2 Quattro was brought out 3 years after the A390 which is quite a serious gap as far as technology is concerned. The two cameras come with different body type with the Sigma DP2 Quattro being a Large Sensor Compact camera and the Sony A390 being a Compact SLR camera.

Before diving in to a comprehensive comparison, below is a concise overview of how the DP2 Quattro scores versus the A390 in the way of portability, imaging, features and an overall score.

Following is a sample of the gallery pics for Sigma DP2 Quattro and Sony Alpha DSLR-A390. The entire galleries are provided at Sigma DP2 Quattro Gallery and Sony A390 Gallery.

For anyone who is intending to carry around your camera regularly, you are going to need to think about its weight and measurements. The Sigma DP2 Quattro has outside measurements of 161mm x 67mm x 82mm (6.3" x 2.6" x 3.2") with a weight of 395 grams (0.87 lbs) whilst the Sony A390 has proportions of 128mm x 97mm x 86mm (5.0" x 3.8" x 3.4") and a weight of 549 grams (1.21 lbs).

Compare the Sigma DP2 Quattro and Sony A390 in the new Camera and Lens Size Comparison Tool.

Remember that, the weight of an Interchangeable Lens Camera will differ depending on the lens you are utilising at the time. The following is the front view physical size comparison of the DP2 Quattro against the A390.

Taking into consideration dimensions and weight, the portability rating of the DP2 Quattro and A390 is 70 and 66 respectively.

Sometimes, it's hard to see the difference between sensor sizes only by checking specifications. The picture here might give you a stronger sense of the sensor measurements in the DP2 Quattro and A390.

To sum up, the two cameras have got the exact same sensor measurements but not the same resolution. You should expect to see the Sigma DP2 Quattro to give extra detail having its extra 6MP. Greater resolution will also enable you to crop images much more aggressively. The younger DP2 Quattro is going to have an edge with regard to sensor technology.