Sigma SD15 vs Sony TX7

On this page, we will be evaluating the Sigma SD15 vs Sony TX7, former being a Advanced DSLR while the latter is a Ultracompact by manufacturers Sigma and Sony. There is a sizable difference between the sensor resolutions of the SD15 (5MP) and TX7 (10MP) and the SD15 (APS-C) and TX7 (1/2.4") provide different sensor sizes.

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The SD15 was revealed 2 months later than the TX7 and they are both of a similar age. Both of these cameras have different body design with the Sigma SD15 being a Mid-size SLR camera and the Sony TX7 being a Ultracompact camera.

Before getting straight to a thorough comparison, here is a short summary of how the SD15 scores against the TX7 with regards to portability, imaging, features and an overall grade.

Following is a preview of the gallery photos for Sigma SD15 & Sony Cyber-shot DSC-TX7. The full galleries are available at Sigma SD15 Gallery & Sony TX7 Gallery.

When you are looking to lug around your camera frequently, you'll have to consider its weight and size. The Sigma SD15 provides physical measurements 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 TX7 has specifications of 98mm x 60mm x 18mm (3.9" x 2.4" x 0.7") accompanied by a weight of 149 grams (0.33 lbs).

Check the Sigma SD15 vs Sony TX7 in our completely new Camera & Lens Size Comparison Tool.

Do not forget, the weight of an ILC will differ dependant on the lens you have during that time. The following is a front view measurements comparison of the SD15 versus the TX7.

Considering size and weight, the portability grade of the SD15 and TX7 is 59 and 95 respectively.

Generally, it can be hard to imagine the contrast between sensor measurements just by going over technical specs. The graphic underneath will help give you a much better sense of the sensor sizing in the SD15 and TX7.

As you can tell, the two cameras have different megapixels and different sensor measurements. The SD15 using its bigger sensor is going to make achieving shallower DOF simpler and the Sony TX7 will offer you more detail because of its extra 5 Megapixels. Higher resolution will also make it easier to crop shots a bit more aggressively.