Sigma SD9 vs Sony A99 II

Here is a in depth analysis of the Sigma SD9 and Sony A99 II, both Advanced DSLR digital cameras by manufacturers Sigma and Sony. There is a huge difference between the image resolutions of the SD9 (3MP) and A99 II (42MP) and the SD9 (APS-C) and A99 II (Full frame) come with totally different sensor dimensions.

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The SD9 was launched 15 years before the A99 II and that is quite a significant gap as far as tech is concerned. Both cameras offer the identical body type (Mid-size SLR).

Before diving in to a more detailed comparison, below is a concise introduction of how the SD9 matches up versus the A99 II when considering portability, imaging, features and an overall rating.

Here is a preview of the gallery images for Sigma SD9 and Sony Alpha A99 II. The complete galleries are provided at Sigma SD9 Gallery and Sony A99 II Gallery.

For those who are aiming to carry your camera frequently, you'll need to take into account its weight and volume. The Sigma SD9 comes with external measurements of 152mm x 120mm x 79mm (6.0" x 4.7" x 3.1") having a weight of 950 grams (2.09 lbs) while the Sony A99 II has sizing of 143mm x 104mm x 76mm (5.6" x 4.1" x 3.0") along with a weight of 849 grams (1.87 lbs).

Take a look at the Sigma SD9 and Sony A99 II in the latest Camera with Lens Size Comparison Tool.

Take into consideration, the weight of an Interchangeable Lens Camera will change dependant on the lens you are working with at that moment. The following is the front view measurement comparison of the SD9 vs the A99 II.

Using size and weight, the portability score of the SD9 and A99 II is 54 and 57 respectively.

Oftentimes, it is very difficult to envision the difference between sensor sizing purely by reading through technical specs. The photograph here should give you a more clear sense of the sensor measurements in the SD9 and A99 II.

As you can tell, both of the cameras enjoy different resolutions and different sensor sizing. The SD9 due to its tinier sensor will make shooting shallower DOF more difficult and the Sony A99 II will resolve greater detail utilizing its extra 39MP. Higher resolution will also allow you to crop shots far more aggressively. The older SD9 is going to be disadvantaged in sensor innovation.