Sigma SD1 vs Sony A7R

On this page, we will be contrasting the Sigma SD1 versus Sony A7R, one is a Advanced DSLR and the latter is a Pro Mirrorless by manufacturers Sigma and Sony. There exists a crucial gap between the resolutions of the SD1 (15MP) and A7R (36MP) and the SD1 (APS-C) and A7R (Full frame) posses different sensor sizes.

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The SD1 was launched 4 years prior to the A7R which is quite a serious gap as far as technology is concerned. The two cameras have different body design with the Sigma SD1 being a Mid-size SLR camera and the Sony A7R being a SLR-style mirrorless camera.

Before going right into a detailed comparison, here is a short summation of how the SD1 grades versus the A7R in the way of portability, imaging, features and an overall score.

Following is a preview of the gallery photos for Sigma SD1 and Sony Alpha A7R. The complete galleries are available at Sigma SD1 Gallery and Sony A7R Gallery.

For those who are planning to carry around your camera often, you'll need to consider its weight and measurements. The Sigma SD1 enjoys exterior dimensions of 146mm x 113mm x 80mm (5.7" x 4.4" x 3.1") and a weight of n/a grams (0.00 lbs) whilst the Sony A7R has proportions of 127mm x 94mm x 48mm (5.0" x 3.7" x 1.9") having a weight of 465 grams (1.03 lbs).

Check out the Sigma SD1 versus Sony A7R in the new Camera with Lens Size Comparison Tool.

Take into account, the weight of an Interchangeable Lens Camera will change depending on the lens you use at the time. Following is a front view physical size comparison of the SD1 compared to the A7R.

Looking at dimensions and weight, the portability score of the SD1 and A7R is 77 and 78 respectively.

Typically, it's hard to imagine the gap between sensor sizes purely by reviewing specifications. The image below will provide you a more clear sense of the sensor dimensions in the SD1 and A7R.

Plainly, both of the cameras have different megapixels and different sensor sizes. The SD1 due to its tinier sensor is going to make achieving shallower DOF harder and the Sony A7R will deliver more detail utilizing its extra 21MP. Higher resolution can also allow you to crop photographs a bit more aggressively. The more aged SD1 is going to be behind when it comes to sensor tech.