Sigma SD1 Merrill vs Sony A7S III

Here, we will be evaluating the Sigma SD1 Merrill and Sony A7S III, former is a Advanced DSLR while the latter is a Pro Mirrorless by companies Sigma and Sony. There exists a noticeable gap among the resolutions of the SD1 Merrill (15MP) and A7S III (12MP) and the SD1 Merrill (APS-C) and A7S III (Full frame) have totally different sensor dimensions.

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The SD1 Merrill was announced 9 years prior to the A7S III which is a fairly sizable difference as far as camera technology is concerned. Both the cameras feature different body design with the Sigma SD1 Merrill being a Mid-size SLR camera and the Sony A7S III being a SLR-style mirrorless camera.

Before going straight to a comprehensive comparison, here is a simple view of how the SD1 Merrill scores vs the A7S III when considering portability, imaging, features and an overall mark.

Here is a preview of the gallery images for Sigma SD1 Merrill & Sony Alpha A7S III. The whole galleries are provided at Sigma SD1 Merrill Gallery & Sony A7S III Gallery.

When you are going to travel with your camera frequently, you should factor its weight and volume. The Sigma SD1 Merrill has got external dimensions of 146mm x 113mm x 80mm (5.7" x 4.4" x 3.1") accompanied by a weight of 790 grams (1.74 lbs) whilst the Sony A7S III has sizing of 129mm x 97mm x 81mm (5.1" x 3.8" x 3.2") having a weight of 699 grams (1.54 lbs).

See the Sigma SD1 Merrill and Sony A7S III in our newest Camera plus Lens Size Comparison Tool.

Do not forget, the weight of an ILC will vary based on the lens you have attached at the time. Underneath is a front view size comparison of the SD1 Merrill versus the A7S III.

Considering dimensions and weight, the portability score of the SD1 Merrill and A7S III is 57 and 61 respectively.

Typically, its hard to see the gap in sensor dimensions only by looking through technical specs. The picture here will provide you a greater sense of the sensor dimensions in the SD1 Merrill and A7S III.

As you have seen, both of these cameras feature different megapixels and different sensor dimensions. The SD1 Merrill with its smaller sensor will make achieving shallow depth of field tougher and the Sigma SD1 Merrill will provide you with more detail with its extra 3MP. Higher resolution will also let you crop pictures way more aggressively. The more aged SD1 Merrill will be behind in sensor technology.