Nikon D7100 vs Sony A7 III

Here, we are reviewing the Nikon D7100 and Sony A7 III, former being a Advanced DSLR while the other is a Pro Mirrorless by manufacturers Nikon and Sony. The resolution of the D7100 (24MP) and the A7 III (24MP) is very comparable but the D7100 (APS-C) and A7 III (Full frame) have different sensor sizes.

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The D7100 was introduced 5 years earlier than the A7 III and that is a fairly large difference as far as camera tech is concerned. Both of the cameras feature different body design with the Nikon D7100 being a Mid-size SLR camera and the Sony A7 III being a SLR-style mirrorless camera.

Before diving into a in depth comparison, here is a concise overview of how the D7100 grades vs the A7 III in the way of portability, imaging, features and an overall grade.

Following is a sample of the gallery pics for Nikon D7100 & Sony Alpha A7 III. The whole galleries are available at Nikon D7100 Gallery & Sony A7 III Gallery.

In case you're aiming to lug around your camera regularly, you're going to have to factor its weight and measurements. The Nikon D7100 comes with physical measurements of 136mm x 107mm x 76mm (5.4" x 4.2" x 3.0") with a weight of 765 grams (1.69 lbs) while the Sony A7 III has proportions of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") with a weight of 650 grams (1.43 lbs).

Contrast the Nikon D7100 and Sony A7 III in our completely new Camera & Lens Size Comparison Tool.

Don't forget, the weight of an ILC will vary depending on the lens you select at the time. Here is a front view proportions comparison of the D7100 versus the A7 III.

Taking into account size and weight, the portability grade of the D7100 and A7 III is 59 and 63 respectively.

Generally, it can be hard to picture the contrast in sensor measurements merely by seeing a spec sheet. The photograph below may offer you a greater sense of the sensor sizing in the D7100 and A7 III.

Clearly, both of the cameras feature the identical MP but different sensor measurements. The D7100 offers the smaller sensor which will make obtaining shallow depth of field more challenging. The older D7100 will be behind in sensor technology.