Sigma SD9 vs Sony A330

On this page, we are matching up the Sigma SD9 vs Sony A330, one is a Advanced DSLR and the other is a Entry-Level DSLR by rivals Sigma and Sony. There exists a significant gap between the image resolutions of the SD9 (3MP) and A330 (10MP) but both cameras posses the same sensor dimensions (APS-C).

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The SD9 was announced 7 years before the A330 which is quite a sizable gap as far as technology is concerned. The two cameras have different body design with the Sigma SD9 being a Mid-size SLR camera and the Sony A330 being a Compact SLR camera.

Before we go right into a in depth comparison, here is a simple summation of how the SD9 scores vs the A330 in the way of portability, imaging, features and an overall mark.

Following is a sample of the gallery pics for Sigma SD9 and Sony Alpha DSLR-A330. The whole galleries are viewable at Sigma SD9 Gallery and Sony A330 Gallery.

For those who are planning to travel with your camera frequently, you need to factor its weight and proportions. The Sigma SD9 has physical measurements of 152mm x 120mm x 79mm (6.0" x 4.7" x 3.1") with a weight of 950 grams (2.09 lbs) while the Sony A330 has measurements of 128mm x 97mm x 71mm (5.0" x 3.8" x 2.8") and a weight of 529 grams (1.17 lbs).

Check out the Sigma SD9 vs Sony A330 in the new Camera with Lens Size Comparison Tool.

Always remember, the weight of an Interchangeable Lens Camera will differ depending on the lens you have attached at the time. Following is a front view scale comparison of the SD9 versus the A330.

Factoring in dimensions and weight, the portability score of the SD9 and A330 is 54 and 67 respectively.

Normally, its difficult to envision the contrast between sensor dimensions merely by checking technical specs. The pic here will help provide you a far better sense of the sensor sizing in the SD9 and A330.

As you have seen, both of those cameras provide the same sensor dimensions but not the same resolution. You should expect to see the Sony A330 to resolve more detail with its extra 7 Megapixels. Greater resolution can also make it easier to crop photos more aggressively. The more aged SD9 is going to be behind with regard to sensor tech.