Sigma SD15 vs Sony A9

Here, we are matching up the Sigma SD15 vs Sony A9, former being a Advanced DSLR while the other is a Pro Mirrorless by rivals Sigma and Sony. There is a considerable difference between the image resolutions of the SD15 (5MP) and A9 (24MP) and the SD15 (APS-C) and A9 (Full frame) provide different sensor sizes.

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The SD15 was introduced 8 years earlier than the A9 and that is quite a large difference as far as tech is concerned. Both the cameras feature different body design with the Sigma SD15 being a Mid-size SLR camera and the Sony A9 being a SLR-style mirrorless camera.

Before we go right into a step-by-step comparison, here is a short overview of how the SD15 grades versus the A9 in the way of portability, imaging, features and an overall grade.

Below is a sample of the gallery pics for Sigma SD15 & Sony Alpha A9. The whole galleries are provided at Sigma SD15 Gallery & Sony A9 Gallery.

For those who are looking to lug around your camera frequently, you need to think about its weight and volume. The Sigma SD15 has got outer dimensions of 144mm x 107mm x 81mm (5.7" x 4.2" x 3.2") along with a weight of 750 grams (1.65 lbs) while the Sony A9 has sizing of 127mm x 96mm x 63mm (5.0" x 3.8" x 2.5") along with a weight of 673 grams (1.48 lbs).

Analyze the Sigma SD15 vs Sony A9 in our brand new Camera plus Lens Size Comparison Tool.

Don't forget, the weight of an ILC will differ dependant on the lens you have attached at the time. Below is a front view scale comparison of the SD15 against the A9.

Taking into account size and weight, the portability score of the SD15 and A9 is 59 and 65 respectively.

Generally, it is very difficult to picture the difference between sensor measurements merely by looking at specifications. The visual here may give you a stronger sense of the sensor dimensions in the SD15 and A9.

To sum up, both of those cameras feature different resolutions and different sensor measurements. The SD15 having a tinier sensor is going to make shooting bokeh tougher and the Sony A9 will give you greater detail using its extra 19MP. Greater resolution can also make it easier to crop photos way more aggressively. The older SD15 is going to be behind with regard to sensor technology.