Sigma DP1 vs Sony A33

Here, we will be analyzing the Sigma DP1 and Sony A33, former being a Large Sensor Compact while the latter is a Entry-Level DSLR by companies Sigma and Sony. There is a considerable difference between the resolutions of the DP1 (5MP) and A33 (14MP) but both cameras posses the identical sensor sizes (APS-C).

Photography Glossary

The DP1 was launched 3 years prior to the A33 and that is quite a large difference as far as tech is concerned. Both cameras feature different body design with the Sigma DP1 being a Large Sensor Compact camera and the Sony A33 being a Compact SLR camera.

Before we go right into a detailed comparison, here is a brief view of how the DP1 scores against the A33 in the way of portability, imaging, features and an overall rating.

Here is a preview of the gallery images for Sigma DP1 & Sony SLT-A33. The complete galleries are available at Sigma DP1 Gallery & Sony A33 Gallery.

If you're planning to carry your camera often, you need to consider its weight and measurements. The Sigma DP1 features physical measurements of 113mm x 60mm x 50mm (4.4" x 2.4" x 2.0") and a weight of 270 grams (0.60 lbs) whilst the Sony A33 has proportions of 124mm x 92mm x 85mm (4.9" x 3.6" x 3.3") accompanied by a weight of 500 grams (1.10 lbs).

Examine the Sigma DP1 and Sony A33 in our completely new Camera plus Lens Size Comparison Tool.

Remember that, the weight of an ILC will vary based on the lens you have at that moment. Following is a front view overall size comparison of the DP1 and the A33.

Taking into consideration size and weight, the portability grade of the DP1 and A33 is 87 and 67 respectively.

Oftentimes, its difficult to imagine the gap between sensor sizing only by reading technical specs. The graphic here should give you a better sense of the sensor sizing in the DP1 and A33.

As you can tell, both of those cameras feature the identical sensor size albeit different MP. You can expect the Sony A33 to offer you greater detail utilizing its extra 9 Megapixels. Higher resolution will also let you crop pictures way more aggressively. The older DP1 is going to be disadvantaged in sensor innovation.