Sigma DP1 vs Sony A55

The following is a in-depth comparison of the Sigma DP1 vs Sony A55, former is a Large Sensor Compact while the other is a Entry-Level DSLR by rivals Sigma and Sony. There is a noticeable difference between the image resolutions of the DP1 (5MP) and A55 (16MP) but they use the same exact sensor sizes (APS-C).

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The DP1 was revealed 3 years earlier than the A55 which is quite a sizable difference as far as tech is concerned. Each of these cameras offer different body type with the Sigma DP1 being a Large Sensor Compact camera and the Sony A55 being a Compact SLR camera.

Before getting in to a more detailed comparison, below is a simple synopsis of how the DP1 matches up versus the A55 with regards to portability, imaging, features and an overall mark.

Here is a sample of the gallery pictures for Sigma DP1 & Sony SLT-A55. The full galleries are viewable at Sigma DP1 Gallery & Sony A55 Gallery.

In case you're going to travel with your camera, you'll have to think about its weight and volume. The Sigma DP1 offers exterior dimensions of 113mm x 60mm x 50mm (4.4" x 2.4" x 2.0") and a weight of 270 grams (0.60 lbs) and the Sony A55 has sizing of 124mm x 92mm x 85mm (4.9" x 3.6" x 3.3") having a weight of 500 grams (1.10 lbs).

Check the Sigma DP1 vs Sony A55 in our completely new Camera & Lens Size Comparison Tool.

Always remember, the weight of an ILC will change depending on the lens you choose at that time. Following is the front view physical size comparison of the DP1 against the A55.

Considering size and weight, the portability rating of the DP1 and A55 is 87 and 67 respectively.

In many cases, it can be hard to envision the contrast between sensor dimensions merely by looking at specifications. The picture below will provide you a greater sense of the sensor sizes in the DP1 and A55.

Plainly, both of those cameras offer the same exact sensor sizing but not the same MP. You can anticipate the Sony A55 to give you greater detail because of its extra 11MP. Greater resolution will also let you crop photos a little more aggressively. The more aged DP1 is going to be disadvantaged when it comes to sensor tech.