Sigma SD1 vs Sony A7 III

Here is a detailed review of the Sigma SD1 versus Sony A7 III, former being a Advanced DSLR while the other is a Pro Mirrorless by competitors Sigma and Sony. There is a large difference between the resolutions of the SD1 (15MP) and A7 III (24MP) and the SD1 (APS-C) and A7 III (Full frame) come with different sensor measurements.

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The SD1 was released 8 years earlier than the A7 III and that is quite a serious difference as far as tech is concerned. Both of the cameras offer different body type with the Sigma SD1 being a Mid-size SLR camera and the Sony A7 III being a SLR-style mirrorless camera.

Before diving straight into a in depth comparison, below is a quick overview of how the SD1 matches up versus the A7 III in regards to portability, imaging, features and an overall rating.

This is a sample of the gallery pictures for Sigma SD1 & Sony Alpha A7 III. The complete galleries are provided at Sigma SD1 Gallery & Sony A7 III Gallery.

For those who are intending to carry your camera frequently, you have to consider its weight and volume. The Sigma SD1 has external measurements of 146mm x 113mm x 80mm (5.7" x 4.4" x 3.1") with a weight of n/a grams (0.00 lbs) while the Sony A7 III has sizing of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") with a weight of 650 grams (1.43 lbs).

See the Sigma SD1 versus Sony A7 III in our newest Camera & Lens Size Comparison Tool.

Take into consideration, the weight of an ILC will vary based on the lens you choose at that time. Underneath is the front view size comparison of the SD1 against the A7 III.

Using size and weight, the portability grade of the SD1 and A7 III is 77 and 63 respectively.

Often, it is tough to visualize the gap between sensor sizing just by reviewing specifications. The photograph underneath should give you a much better sense of the sensor sizing in the SD1 and A7 III.

To sum up, each of these cameras enjoy different megapixels and different sensor sizing. The SD1 because of its tinier sensor is going to make getting shallow DOF trickier and the Sony A7 III will offer you more detail as a result of its extra 9 Megapixels. Greater resolution can also allow you to crop pics far more aggressively. The older SD1 is going to be behind when it comes to sensor innovation.