Sigma SD1 Merrill vs Sony A7 III

Let's examine more in depth at the Sigma SD1 Merrill vs Sony A7 III, one being a Advanced DSLR and the latter is a Pro Mirrorless by rivals Sigma and Sony. There exists a huge gap among the image resolutions of the SD1 Merrill (15MP) and A7 III (24MP) and the SD1 Merrill (APS-C) and A7 III (Full frame) use different sensor sizing.

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The SD1 Merrill was introduced 6 years before the A7 III and that is a fairly significant gap as far as camera technology is concerned. Both of the cameras offer different body type with the Sigma SD1 Merrill being a Mid-size SLR camera and the Sony A7 III being a SLR-style mirrorless camera.

Before diving in to a in depth comparison, below is a brief introduction of how the SD1 Merrill grades versus the A7 III when it comes to portability, imaging, features and an overall rating.

The following is a preview of the gallery images for Sigma SD1 Merrill and Sony Alpha A7 III. The whole galleries are viewable at Sigma SD1 Merrill Gallery and Sony A7 III Gallery.

If you are intending to carry your camera regularly, you are going to need to factor its weight and size. The Sigma SD1 Merrill features 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) while the Sony A7 III has specifications of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") and a weight of 650 grams (1.43 lbs).

Examine the Sigma SD1 Merrill vs Sony A7 III in the new Camera with Lens Size Comparison Tool.

Remember, the weight of an Interchangeable Lens Camera will change dependant on the lens you choose at the time. Below is the front view scale comparison of the SD1 Merrill versus the A7 III.

Considering dimensions and weight, the portability grade of the SD1 Merrill and A7 III is 57 and 63 respectively.

Normally, it can be difficult to visualize the difference in sensor sizing purely by checking out technical specs. The visual underneath may provide you a stronger sense of the sensor dimensions in the SD1 Merrill and A7 III.

As you have seen, both of the cameras enjoy different resolutions and different sensor sizing. The SD1 Merrill with its smaller sensor is going to make getting shallower DOF tougher and the Sony A7 III will provide greater detail using its extra 9 Megapixels. Higher resolution will also help you crop shots far more aggressively. The older SD1 Merrill will be disadvantaged when it comes to sensor technology.