Sigma SD9 vs Sony A9

Below, we are evaluating the Sigma SD9 versus Sony A9, one is a Advanced DSLR and the other is a Pro Mirrorless by brands Sigma and Sony. There exists a huge gap among the image resolutions of the SD9 (3MP) and A9 (24MP) and the SD9 (APS-C) and A9 (Full frame) feature totally different sensor sizes.

Photography Glossary

The SD9 was introduced 15 years earlier than the A9 which is a fairly significant gap as far as camera technology is concerned. Both cameras come with different body type with the Sigma SD9 being a Mid-size SLR camera and the Sony A9 being a SLR-style mirrorless camera.

Before delving through a more detailed comparison, below is a concise introduction of how the SD9 scores against the A9 when considering portability, imaging, features and an overall mark.

Here is a sample of the gallery pics for Sigma SD9 and Sony Alpha A9. The whole galleries are provided at Sigma SD9 Gallery and Sony A9 Gallery.

For anyone who is intending to travel with your camera often, you will want to take into account its weight and measurements. The Sigma SD9 has physical measurements of 152mm x 120mm x 79mm (6.0" x 4.7" x 3.1") accompanied by a weight of 950 grams (2.09 lbs) and the Sony A9 has proportions of 127mm x 96mm x 63mm (5.0" x 3.8" x 2.5") with a weight of 673 grams (1.48 lbs).

Look at the Sigma SD9 versus Sony A9 in the new Camera and Lens Size Comparison Tool.

Keep in mind, the weight of an Interchangeable Lens Camera will differ dependant on the lens you are utilizing at that moment. Below is the front view dimensions comparison of the SD9 versus the A9.

Using dimensions and weight, the portability score of the SD9 and A9 is 54 and 65 respectively.

More often than not, it's difficult to see the gap in sensor dimensions merely by going through specs. The image here should offer you a stronger sense of the sensor sizing in the SD9 and A9.

All in all, the two cameras have got different resolutions and different sensor dimensions. The SD9 using its smaller sensor will make shooting bokeh tougher and the Sony A9 will produce more detail using its extra 21 Megapixels. Greater resolution will also make it easier to crop pics much more aggressively. The more aged SD9 will be disadvantaged in sensor tech.