Sigma SD15 vs Sony a5100

Following is a complete overview of the Sigma SD15 vs Sony a5100, former is a Advanced DSLR while the latter is a Entry-Level Mirrorless by manufacturers Sigma and Sony. There exists a large gap between the resolutions of the SD15 (5MP) and a5100 (24MP) but both cameras offer the same sensor measurements (APS-C).

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The SD15 was manufactured 5 years earlier than the a5100 which is quite a serious difference as far as technology is concerned. Both of these cameras have different body design with the Sigma SD15 being a Mid-size SLR camera and the Sony a5100 being a Rangefinder-style mirrorless camera.

Before delving straight to a step-by-step comparison, here is a short synopsis of how the SD15 scores vs the a5100 in the way of portability, imaging, features and an overall score.

Following is a preview of the gallery photos for Sigma SD15 & Sony Alpha a5100. The entire galleries are available at Sigma SD15 Gallery & Sony a5100 Gallery.

When you are looking to carry around your camera frequently, you need to factor in its weight and volume. The Sigma SD15 comes with exterior measurements of 144mm x 107mm x 81mm (5.7" x 4.2" x 3.2") having a weight of 750 grams (1.65 lbs) whilst the Sony a5100 has sizing of 110mm x 63mm x 36mm (4.3" x 2.5" x 1.4") along with a weight of 283 grams (0.62 lbs).

See the Sigma SD15 vs Sony a5100 in our completely new Camera & Lens Size Comparison Tool.

Do not forget, the weight of an ILC will change dependant on the lens you have attached at that moment. Here is a front view measurement comparison of the SD15 versus the a5100.

Taking into account dimensions and weight, the portability rating of the SD15 and a5100 is 59 and 89 respectively.

Typically, its tough to picture the difference between sensor sizes simply by reviewing technical specs. The picture here might provide you a more clear sense of the sensor measurements in the SD15 and a5100.

As you have seen, the two cameras have the same sensor dimensions albeit different megapixels. You can count on the Sony a5100 to offer you more detail due to its extra 19 Megapixels. Higher resolution will also make it easier to crop pictures a bit more aggressively. The more aged SD15 is going to be behind in sensor innovation.