Sigma SD9 vs Sony A7S

Here, we will be analyzing the Sigma SD9 versus Sony A7S, one being a Advanced DSLR and the latter is a Pro Mirrorless by manufacturers Sigma and Sony. There exists a crucial gap among the sensor resolutions of the SD9 (3MP) and A7S (12MP) and the SD9 (APS-C) and A7S (Full frame) posses different sensor size.

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The SD9 was announced 12 years before the A7S and that is a fairly serious gap as far as camera technology is concerned. Both cameras feature different body design with the Sigma SD9 being a Mid-size SLR camera and the Sony A7S being a SLR-style mirrorless camera.

Before getting straight to a comprehensive comparison, here is a brief view of how the SD9 matches up versus the A7S in the way of portability, imaging, features and an overall grade.

Following is a preview of the gallery images for Sigma SD9 and Sony Alpha A7S. The whole galleries are provided at Sigma SD9 Gallery and Sony A7S Gallery.

If you are aiming to lug around your camera often, you have to factor in its weight and dimensions. The Sigma SD9 features physical dimensions of 152mm x 120mm x 79mm (6.0" x 4.7" x 3.1") having a weight of 950 grams (2.09 lbs) whilst the Sony A7S has dimensions of 127mm x 94mm x 48mm (5.0" x 3.7" x 1.9") accompanied by a weight of 489 grams (1.08 lbs).

Examine the Sigma SD9 versus Sony A7S in the new Camera and Lens Size Comparison Tool.

Take into account, the weight of an Interchangeable Lens Camera will change depending on the lens you are using at the time. Here is a front view scale comparison of the SD9 compared to the A7S.

Using dimensions and weight, the portability score of the SD9 and A7S is 54 and 77 respectively.

Sometimes, it can be hard to imagine the contrast in sensor measurements only by checking out technical specs. The visual underneath will offer you a more clear sense of the sensor sizes in the SD9 and A7S.

As you can tell, both cameras feature different megapixel count and different sensor measurements. The SD9 having a smaller sensor is going to make shooting shallow depth of field harder and the Sony A7S will show more detail with its extra 9 Megapixels. Higher resolution will also let you crop pictures way more aggressively. The older SD9 will be disadvantaged when it comes to sensor innovation.