Sigma DP1 Merrill vs Sony A7R III

In this article, we will be analyzing the Sigma DP1 Merrill versus Sony A7R III, one being a Large Sensor Compact and the latter is a Pro Mirrorless by brands Sigma and Sony. There exists a significant gap among the resolutions of the DP1 Merrill (15MP) and A7R III (42MP) and the DP1 Merrill (APS-C) and A7R III (Full frame) use different sensor measurements.

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The DP1 Merrill was revealed 6 years prior to the A7R III and that is a fairly sizable gap as far as camera technology is concerned. The two cameras offer different body type with the Sigma DP1 Merrill being a Large Sensor Compact camera and the Sony A7R III being a SLR-style mirrorless camera.

Before we go through a in depth comparison, below is a concise summation of how the DP1 Merrill scores against the A7R III when considering portability, imaging, features and an overall rating.

Here is a preview of the gallery photos for Sigma DP1 Merrill and Sony Alpha A7R III. The full galleries are provided at Sigma DP1 Merrill Gallery and Sony A7R III Gallery.

If you are going to carry your camera regularly, you have to factor in its weight and size. The Sigma DP1 Merrill features exterior measurements of 122mm x 67mm x 64mm (4.8" x 2.6" x 2.5") having a weight of 330 grams (0.73 lbs) and the Sony A7R III has specifications of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") accompanied by a weight of 657 grams (1.45 lbs).

Look at the Sigma DP1 Merrill versus Sony A7R III in the new Camera and Lens Size Comparison Tool.

Don't forget, the weight of an Interchangeable Lens Camera will change based on the lens you have at that moment. Here is the front view dimension comparison of the DP1 Merrill vs the A7R III.

Using dimensions and weight, the portability grade of the DP1 Merrill and A7R III is 82 and 63 respectively.

More often than not, its difficult to imagine the difference in sensor sizing simply by going through technical specs. The graphic below might give you a far better sense of the sensor sizing in the DP1 Merrill and A7R III.

As you have seen, the two cameras offer different megapixel count and different sensor sizing. The DP1 Merrill having a smaller sensor is going to make getting bokeh more difficult and the Sony A7R III will provide extra detail because of its extra 27MP. Higher resolution will also let you crop pictures a little more aggressively. The older DP1 Merrill will be disadvantaged when it comes to sensor innovation.