Sigma SD1 Merrill vs Sony A7R IV

Let's examine more in depth at the Sigma SD1 Merrill vs Sony A7R IV, one being a Advanced DSLR and the other is a Pro Mirrorless by brands Sigma and Sony. There is a big difference among the sensor resolutions of the SD1 Merrill (15MP) and A7R IV (61MP) and the SD1 Merrill (APS-C) and A7R IV (Full frame) possess different sensor measurements.

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The SD1 Merrill was unveiled 8 years earlier than the A7R IV and that is a fairly big gap as far as camera tech is concerned. Each of these cameras come with different body type with the Sigma SD1 Merrill being a Mid-size SLR camera and the Sony A7R IV being a SLR-style mirrorless camera.

Before going through a detailed comparison, below is a short synopsis of how the SD1 Merrill grades vs the A7R IV with regards to portability, imaging, features and an overall grade.

Following is a sample of the gallery pics for Sigma SD1 Merrill and Sony Alpha A7R IV. The full galleries are available at Sigma SD1 Merrill Gallery and Sony A7R IV Gallery.

For those who are going to lug around your camera frequently, you're going to have to take into account its weight and measurements. The Sigma SD1 Merrill features external dimensions of 146mm x 113mm x 80mm (5.7" x 4.4" x 3.1") with a weight of 790 grams (1.74 lbs) and the Sony A7R IV has proportions of 129mm x 96mm x 78mm (5.1" x 3.8" x 3.1") accompanied by a weight of 665 grams (1.47 lbs).

Compare the Sigma SD1 Merrill vs Sony A7R IV in the latest Camera with Lens Size Comparison Tool.

Remember, the weight of an Interchangeable Lens Camera will vary depending on the lens you select during that time. The following is the front view dimensions comparison of the SD1 Merrill and the A7R IV.

Factoring in size and weight, the portability rating of the SD1 Merrill and A7R IV is 57 and 62 respectively.

Often, its difficult to visualize the gap in sensor measurements just by viewing technical specs. The photograph below will give you a greater sense of the sensor sizes in the SD1 Merrill and A7R IV.

As you can tell, both of the cameras posses different resolutions and different sensor measurements. The SD1 Merrill with its smaller sensor is going to make getting shallow DOF tougher and the Sony A7R IV will result in extra detail having an extra 46 Megapixels. Greater resolution will help you crop pics somewhat more aggressively. The older SD1 Merrill will be behind with regard to sensor innovation.