Sigma SD9 vs Sony W620

Below is a thorough review of the Sigma SD9 and Sony W620, former being a Advanced DSLR while the latter is a Small Sensor Compact by rivals Sigma and Sony. There is a considerable difference among the sensor resolutions of the SD9 (3MP) and W620 (14MP) and the SD9 (APS-C) and W620 (1/2.3") possess totally different sensor sizing.

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The SD9 was revealed 10 years before the W620 and that is a fairly large difference as far as camera tech is concerned. The two cameras come with different body type with the Sigma SD9 being a Mid-size SLR camera and the Sony W620 being a Compact camera.

Before delving straight into a detailed comparison, below is a concise overview of how the SD9 grades vs the W620 with respect to portability, imaging, features and an overall grade.

The following is a preview of the gallery images for Sigma SD9 & Sony Cyber-shot DSC-W620. The full galleries are viewable at Sigma SD9 Gallery & Sony W620 Gallery.

In case you're looking to lug around your camera often, you will need to consider its weight and measurements. The Sigma SD9 provides physical dimensions of 152mm x 120mm x 79mm (6.0" x 4.7" x 3.1") accompanied by a weight of 950 grams (2.09 lbs) and the Sony W620 has proportions of 98mm x 56mm x 20mm (3.9" x 2.2" x 0.8") and a weight of 116 grams (0.26 lbs).

Compare the Sigma SD9 and Sony W620 in our completely new Camera & Lens Size Comparison Tool.

Take into consideration, the weight of an ILC will vary depending on the lens you choose at that time. Below is the front view over all size comparison of the SD9 against the W620.

Taking into consideration size and weight, the portability grade of the SD9 and W620 is 54 and 96 respectively.

Generally, it's difficult to see the contrast in sensor measurements merely by looking through specifications. The graphic here will give you a clearer sense of the sensor dimensions in the SD9 and W620.

Plainly, each of these cameras posses different megapixel count and different sensor measurements. The SD9 with its bigger sensor will make achieving bokeh simpler and the Sony W620 will result in extra detail because of its extra 11MP. Higher resolution can also allow you to crop shots somewhat more aggressively. The older SD9 will be behind with regard to sensor technology.