Canon A490 vs Canon D20

Below is a complete analysis of the Canon A490 and Canon D20, one being a Small Sensor Compact and the latter is a Waterproof and both are produced by Canon. The resolution of the A490 (10MP) and the D20 (12MP) is pretty comparable and they enjoy the exact same sensor dimensions (1/2.3").

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The A490 was launched 4 years earlier than the D20 and that is a fairly large gap as far as camera technology is concerned. Each of these cameras come with the identical body type (Compact).

Before diving through a comprehensive comparison, below is a short view of how the A490 scores vs the D20 with respect to portability, imaging, features and an overall grade.

Following is a preview of the gallery images for Canon PowerShot A490 and Canon PowerShot D20. The complete galleries are viewable at Canon A490 Gallery and Canon D20 Gallery.

For anybody who is going to lug around your camera, you should factor its weight and measurements. The Canon A490 enjoys external dimensions of 94mm x 62mm x 31mm (3.7" x 2.4" x 1.2") along with a weight of 175 grams (0.39 lbs) while the Canon D20 has proportions of 112mm x 71mm x 28mm (4.4" x 2.8" x 1.1") with a weight of 228 grams (0.50 lbs).

Look at the Canon A490 and Canon D20 in the new Camera with Lens Size Comparison Tool.

Do not forget, the weight of an Interchangeable Lens Camera will vary dependant on the lens you use at that time. Following is the front view sizing comparison of the A490 against the D20.

Factoring in dimensions and weight, the portability score of the A490 and D20 is 93 and 91 respectively.

More often than not, it is very tough to visualize the contrast in sensor measurements just by checking out specs. The graphic below will offer you a stronger sense of the sensor dimensions in the A490 and D20.

As you can plainly see, both of the cameras posses the exact same sensor measurements albeit different resolution. You should expect the Canon D20 to provide more detail utilizing its extra 2 Megapixels. Higher resolution can also allow you to crop shots somewhat more aggressively. The older A490 will be disadvantaged when it comes to sensor innovation.