Sigma SD9 vs Sony A6100

In this write-up, we will be evaluating the Sigma SD9 versus Sony A6100, former being a Advanced DSLR while the latter is a Advanced Mirrorless by competitors Sigma and Sony. There is a noticeable difference between the resolutions of the SD9 (3MP) and A6100 (24MP) but they enjoy the same exact sensor measurements (APS-C).

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The SD9 was brought out 17 years before the A6100 and that is quite a sizable difference as far as tech is concerned. Both cameras offer different body type with the Sigma SD9 being a Mid-size SLR camera and the Sony A6100 being a Rangefinder-style mirrorless camera.

Before we go in to a in-depth comparison, below is a brief highlight of how the SD9 grades against the A6100 with regards to portability, imaging, features and an overall grade.

Here is a preview of the gallery images for Sigma SD9 & Sony Alpha a6100. The entire galleries are provided at Sigma SD9 Gallery & Sony A6100 Gallery.

In case you're planning to lug around your camera often, you'll have to think about its weight and size. The Sigma SD9 has outer dimensions of 152mm x 120mm x 79mm (6.0" x 4.7" x 3.1") with a weight of 950 grams (2.09 lbs) whilst the Sony A6100 has specifications of 120mm x 67mm x 59mm (4.7" x 2.6" x 2.3") with a weight of 396 grams (0.87 lbs).

Look at the Sigma SD9 versus Sony A6100 in our brand new Camera & Lens Size Comparison Tool.

Remember that, the weight of an ILC will differ depending on the lens you have chosen during that time. The following is the front view scale comparison of the SD9 compared to the A6100.

Factoring in size and weight, the portability rating of the SD9 and A6100 is 54 and 81 respectively.

Often, it is difficult to visualize the difference between sensor measurements purely by looking at specifications. The photograph underneath may provide you a greater sense of the sensor sizes in the SD9 and A6100.

Plainly, both of the cameras offer the same exact sensor sizing albeit different MP. You can expect the Sony A6100 to resolve greater detail having its extra 21 Megapixels. Higher resolution can also make it easier to crop pictures a little more aggressively. The older SD9 is going to be behind in sensor innovation.