Sigma SD9 vs Sony A33

Here, we are evaluating the Sigma SD9 and Sony A33, one being a Advanced DSLR and the other is a Entry-Level DSLR by competitors Sigma and Sony. There exists a crucial gap between the sensor resolutions of the SD9 (3MP) and A33 (14MP) but both cameras have the identical sensor size (APS-C).

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The SD9 was manufactured 8 years prior to the A33 and that is quite a serious gap as far as technology is concerned. The two cameras feature different body design with the Sigma SD9 being a Mid-size SLR camera and the Sony A33 being a Compact SLR camera.

Before going right into a detailed comparison, here is a short summary of how the SD9 scores versus the A33 when considering portability, imaging, features and an overall rating.

Following is a sample of the gallery pictures for Sigma SD9 and Sony SLT-A33. The entire galleries are available at Sigma SD9 Gallery and Sony A33 Gallery.

In case you're going to carry your camera, you'll have to factor in its weight and size. The Sigma SD9 enjoys physical dimensions of 152mm x 120mm x 79mm (6.0" x 4.7" x 3.1") along with a weight of 950 grams (2.09 lbs) whilst the Sony A33 has specifications of 124mm x 92mm x 85mm (4.9" x 3.6" x 3.3") and a weight of 500 grams (1.10 lbs).

Analyze the Sigma SD9 and Sony A33 in the all new Camera with Lens Size Comparison Tool.

Take into account, the weight of an Interchangeable Lens Camera will change dependant on the lens you have chosen at that moment. Following is a front view measurement comparison of the SD9 compared to the A33.

Looking at dimensions and weight, the portability score of the SD9 and A33 is 54 and 67 respectively.

Typically, its difficult to envision the difference between sensor sizing purely by reviewing a spec sheet. The photograph underneath might offer you a stronger sense of the sensor sizes in the SD9 and A33.

As you can see, both of these cameras feature the identical sensor size but not the same MP. You should anticipate the Sony A33 to offer you greater detail due to its extra 11MP. Greater resolution can also let you crop photos way more aggressively. The older SD9 is going to be behind in sensor technology.