Sigma SD15 vs Sony W800

Lets look a bit more closely at the Sigma SD15 and Sony W800, one being a Advanced DSLR and the latter is a Small Sensor Compact by brands Sigma and Sony. There is a significant difference between the resolutions of the SD15 (5MP) and W800 (20MP) and the SD15 (APS-C) and W800 (1/2.3") provide totally different sensor sizes.

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The SD15 was introduced 5 years earlier than the W800 and that is quite a sizable gap as far as tech is concerned. Both of these cameras feature different body design with the Sigma SD15 being a Mid-size SLR camera and the Sony W800 being a Compact camera.

Before we go right into a full comparison, here is a simple summary of how the SD15 matches up against the W800 when it comes to portability, imaging, features and an overall rating.

Here is a preview of the gallery images for Sigma SD15 and Sony Cyber-shot DSC-W800. The whole galleries are viewable at Sigma SD15 Gallery and Sony W800 Gallery.

When you are going to carry your camera often, you'll need to take into account its weight and measurements. The Sigma SD15 features physical dimensions of 144mm x 107mm x 81mm (5.7" x 4.2" x 3.2") having a weight of 750 grams (1.65 lbs) while the Sony W800 has proportions of 97mm x 55mm x 21mm (3.8" x 2.2" x 0.8") along with a weight of 125 grams (0.28 lbs).

Compare the Sigma SD15 and Sony W800 in the all new Camera and Lens Size Comparison Tool.

Take into consideration, the weight of an Interchangeable Lens Camera will vary based on the lens you are using at that moment. The following is a front view scale comparison of the SD15 compared to the W800.

Considering size and weight, the portability score of the SD15 and W800 is 59 and 96 respectively.

Often, it is difficult to visualise the difference between sensor sizing just by going over specs. The graphic below should provide you a more clear sense of the sensor dimensions in the SD15 and W800.

All in all, the two cameras feature different megapixel count and different sensor sizing. The SD15 with its bigger sensor will make achieving shallower DOF less difficult and the Sony W800 will offer more detail using its extra 15 Megapixels. Higher resolution can also enable you to crop shots way more aggressively. The older SD15 is going to be disadvantaged when it comes to sensor technology.