Sigma DP1 vs Sony A7S III

Here is a thorough analysis of the Sigma DP1 and Sony A7S III, former being a Large Sensor Compact while the other is a Pro Mirrorless by brands Sigma and Sony. There is a sizable difference among the sensor resolutions of the DP1 (5MP) and A7S III (12MP) and the DP1 (APS-C) and A7S III (Full frame) feature totally different sensor sizing.

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The DP1 was manufactured 13 years before the A7S III and that is a fairly significant difference as far as camera tech is concerned. Both of these cameras come with different body type with the Sigma DP1 being a Large Sensor Compact camera and the Sony A7S III being a SLR-style mirrorless camera.

Before getting straight into a step-by-step comparison, below is a brief view of how the DP1 matches up versus the A7S III in the way of portability, imaging, features and an overall rating.

Below is a sample of the gallery pics for Sigma DP1 & Sony Alpha A7S III. The entire galleries are available at Sigma DP1 Gallery & Sony A7S III Gallery.

If you're looking to carry your camera regularly, you're going to have to factor in its weight and dimensions. The Sigma DP1 comes with outer measurements of 113mm x 60mm x 50mm (4.4" x 2.4" x 2.0") having a weight of 270 grams (0.60 lbs) while the Sony A7S III has dimensions of 129mm x 97mm x 81mm (5.1" x 3.8" x 3.2") with a weight of 699 grams (1.54 lbs).

Contrast the Sigma DP1 and Sony A7S III in our newest Camera & Lens Size Comparison Tool.

Always remember, the weight of an ILC will change depending on the lens you are using at that moment. Following is the front view scale comparison of the DP1 versus the A7S III.

Taking into account size and weight, the portability grade of the DP1 and A7S III is 87 and 61 respectively.

Usually, it is hard to visualise the contrast in sensor sizing simply by looking through technical specs. The visual here may give you a greater sense of the sensor measurements in the DP1 and A7S III.

As you have seen, both of the cameras have got different resolutions and different sensor sizing. The DP1 due to its smaller sensor will make getting shallower DOF tougher and the Sony A7S III will provide you with extra detail due to its extra 7 Megapixels. Greater resolution can also make it easier to crop pics much more aggressively. The older DP1 will be disadvantaged when it comes to sensor innovation.