Canon SX20 IS vs Sigma SD15

Here is a extensive assessment of the Canon SX20 IS vs Sigma SD15, one being a Small Sensor Superzoom and the other is a Advanced DSLR by manufacturers Canon and Sigma. There exists a big gap among the resolutions of the SX20 IS (12MP) and SD15 (5MP) and the SX20 IS (1/2.3") and SD15 (APS-C) boast different sensor sizes.

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The SX20 IS was launched 5 months later than the SD15 and they are both of a similar generation. Each of these cameras feature different body design with the Canon SX20 IS being a SLR-like (bridge) camera and the Sigma SD15 being a Mid-size SLR camera.

Before getting into a in depth comparison, here is a quick highlight of how the SX20 IS grades against the SD15 with regards to portability, imaging, features and an overall rating.

Below is a sample of the gallery pictures for Canon PowerShot SX20 IS and Sigma SD15. The complete galleries are available at Canon SX20 IS Gallery and Sigma SD15 Gallery.

For anybody who is looking to carry your camera, you should take into account its weight and measurements. The Canon SX20 IS comes with outer measurements of 128mm x 88mm x 87mm (5.0" x 3.5" x 3.4") and a weight of 600 grams (1.32 lbs) while the Sigma SD15 has proportions of 144mm x 107mm x 81mm (5.7" x 4.2" x 3.2") with a weight of 750 grams (1.65 lbs).

Check out the Canon SX20 IS vs Sigma SD15 in the new Camera with Lens Size Comparison Tool.

Always remember, the weight of an Interchangeable Lens Camera will change depending on the lens you are utilizing at that time. Here is a front view proportions comparison of the SX20 IS compared to the SD15.

Taking into account dimensions and weight, the portability grade of the SX20 IS and SD15 is 65 and 59 respectively.

Quite often, it's tough to visualize the difference in sensor sizing simply by checking out technical specs. The visual here may offer you a much better sense of the sensor measurements in the SX20 IS and SD15.

As you can tell, the 2 cameras feature different megapixels and different sensor sizing. The SX20 IS due to its smaller sensor is going to make achieving shallow depth of field tougher and the Canon SX20 IS will provide more detail utilizing its extra 7MP. Greater resolution will help you crop pics way more aggressively.