Sigma SD15 vs Sony TX55

Below is a in-depth overview of the Sigma SD15 versus Sony TX55, former being a Advanced DSLR while the other is a Ultracompact by manufacturers Sigma and Sony. There is a substantial difference between the image resolutions of the SD15 (5MP) and TX55 (16MP) and the SD15 (APS-C) and TX55 (1/2.3") enjoy totally different sensor sizes.

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The SD15 was introduced 17 months before the TX55 making the cameras a generation apart from each other. Both of these cameras offer different body type with the Sigma SD15 being a Mid-size SLR camera and the Sony TX55 being a Ultracompact camera.

Before going straight into a more detailed comparison, below is a brief summation of how the SD15 scores vs the TX55 in relation to portability, imaging, features and an overall grade.

The following is a sample of the gallery pictures for Sigma SD15 & Sony Cyber-shot DSC-TX55. The whole galleries are available at Sigma SD15 Gallery & Sony TX55 Gallery.

For anyone who is looking to lug around your camera, you need to think about its weight and proportions. The Sigma SD15 has got external dimensions of 144mm x 107mm x 81mm (5.7" x 4.2" x 3.2") accompanied by a weight of 750 grams (1.65 lbs) whilst the Sony TX55 has measurements of 93mm x 54mm x 13mm (3.7" x 2.1" x 0.5") accompanied by a weight of 109 grams (0.24 lbs).

Check the Sigma SD15 versus Sony TX55 in our brand new Camera & Lens Size Comparison Tool.

Don't forget, the weight of an ILC will differ dependant on the lens you are employing at that time. Underneath is the front view physical size comparison of the SD15 against the TX55.

Taking into consideration size and weight, the portability grade of the SD15 and TX55 is 59 and 97 respectively.

In many cases, it is very hard to visualise the contrast between sensor measurements simply by looking at specifications. The visual underneath may provide you a better sense of the sensor dimensions in the SD15 and TX55.

To sum up, each of the cameras offer different resolutions and different sensor measurements. The SD15 using its larger sensor will make shooting bokeh easier and the Sony TX55 will give you extra detail using its extra 11 Megapixels. Greater resolution will also let you crop images a little more aggressively. The older SD15 is going to be behind when it comes to sensor technology.