Canon SD990 IS vs Sony TX55

Lets look a little more closely at the Canon SD990 IS versus Sony TX55, both Ultracompact digital cameras by competitors Canon and Sony. The image resolution of the SD990 IS (15MP) and the TX55 (16MP) is very well matched but the SD990 IS (1/1.7") and TX55 (1/2.3") have totally different sensor measurements.

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The SD990 IS was manufactured 3 years before the TX55 and that is quite a serious gap as far as tech is concerned. Both the cameras have the same body design (Ultracompact).

Before delving straight to a step-by-step comparison, here is a quick view of how the SD990 IS matches up vs the TX55 with regards to portability, imaging, features and an overall rating.

This is a sample of the gallery pics for Canon PowerShot SD990 IS and Sony Cyber-shot DSC-TX55. The entire galleries are available at Canon SD990 IS Gallery and Sony TX55 Gallery.

If you're going to carry your camera often, you'll need to think about its weight and volume. The Canon SD990 IS provides outside measurements of 98mm x 62mm x 28mm (3.9" x 2.4" x 1.1") along with a weight of 205 grams (0.45 lbs) and the Sony TX55 has sizing of 93mm x 54mm x 13mm (3.7" x 2.1" x 0.5") having a weight of 109 grams (0.24 lbs).

Check the Canon SD990 IS versus Sony TX55 in the new Camera with Lens Size Comparison Tool.

Take into account, the weight of an Interchangeable Lens Camera will change based on the lens you choose during that time. Below is a front view dimension comparison of the SD990 IS versus the TX55.

Looking at size and weight, the portability grade of the SD990 IS and TX55 is 92 and 97 respectively.

In many cases, it can be tough to see the contrast between sensor sizing merely by looking at a spec sheet. The graphic here will give you a greater sense of the sensor measurements in the SD990 IS and TX55.

As you can see, both the cameras provide different resolutions and different sensor sizing. The SD990 IS due to its larger sensor will make shooting shallower DOF easier and the Sony TX55 will resolve greater detail due to its extra 1MP. Greater resolution can also allow you to crop pics more aggressively. The older SD990 IS is going to be disadvantaged with regard to sensor technology.