Canon A3100 IS vs Sigma DP2x

Here is a extended analysis of the Canon A3100 IS vs Sigma DP2x, former being a Small Sensor Compact while the other is a Large Sensor Compact by rivals Canon and Sigma. There is a considerable difference between the image resolutions of the A3100 IS (12MP) and DP2x (5MP) and the A3100 IS (1/2.3") and DP2x (APS-C) provide totally different sensor measurements.

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The A3100 IS was launched 13 months before the DP2x making them a generation apart from each other. Both of these cameras have different body design with the Canon A3100 IS being a Compact camera and the Sigma DP2x being a Large Sensor Compact camera.

Before delving right into a detailed comparison, here is a brief overview of how the A3100 IS scores versus the DP2x in relation to portability, imaging, features and an overall rating.

Following is a sample of the gallery pictures for Canon PowerShot A3100 IS & Sigma DP2x. The complete galleries are viewable at Canon A3100 IS Gallery & Sigma DP2x Gallery.

If you are planning to carry your camera, you are going to need to think about its weight and dimensions. The Canon A3100 IS has exterior dimensions of 97mm x 58mm x 28mm (3.8" x 2.3" x 1.1") with a weight of 165 grams (0.36 lbs) whilst the Sigma DP2x has dimensions of 113mm x 60mm x 56mm (4.4" x 2.4" x 2.2") having a weight of 280 grams (0.62 lbs).

Examine the Canon A3100 IS vs Sigma DP2x in our completely new Camera plus Lens Size Comparison Tool.

Don't forget, the weight of an ILC will change dependant on the lens you have during that time. The following is a front view overall size comparison of the A3100 IS vs the DP2x.

Factoring in size and weight, the portability grade of the A3100 IS and DP2x is 94 and 86 respectively.

In many cases, it's hard to envision the difference between sensor sizing purely by checking specs. The photograph underneath may offer you a more clear sense of the sensor sizes in the A3100 IS and DP2x.

As you can plainly see, the 2 cameras provide different megapixels and different sensor sizing. The A3100 IS due to its tinier sensor will make shooting shallower depth of field tougher and the Canon A3100 IS will give you extra detail utilizing its extra 7MP. Greater resolution will also let you crop photos more aggressively. The older A3100 IS is going to be disadvantaged when it comes to sensor innovation.