Sony A7R III vs Sony A700

Below, we will be analyzing the Sony A7R III and Sony A700, one being a Pro Mirrorless and the latter is a Advanced DSLR and they are both manufactured by Sony. There is a significant difference among the image resolutions of the A7R III (42MP) and A700 (12MP) and the A7R III (Full frame) and A700 (APS-C) use different sensor dimensions.

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The A7R III was announced 9 years later than the A700 and that is a fairly sizable gap as far as camera tech is concerned. Both of these cameras come with different body type with the Sony A7R III being a SLR-style mirrorless camera and the Sony A700 being a Mid-size SLR camera.

Before diving in to a complete comparison, below is a short view of how the A7R III grades vs the A700 with respect to portability, imaging, features and an overall grade.

This is a preview of the gallery photos for Sony Alpha A7R III and Sony Alpha DSLR-A700. The whole galleries are provided at Sony A7R III Gallery and Sony A700 Gallery.

If you're looking to lug around your camera often, you're going to have to consider its weight and dimensions. The Sony A7R III comes with physical dimensions of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") and a weight of 657 grams (1.45 lbs) while the Sony A700 has dimensions of 142mm x 105mm x 80mm (5.6" x 4.1" x 3.1") with a weight of 768 grams (1.69 lbs).

Contrast the Sony A7R III and Sony A700 in the latest Camera and Lens Size Comparison Tool.

Take into account, the weight of an Interchangeable Lens Camera will change dependant on the lens you are utilizing during that time. Here is the front view physical size comparison of the A7R III versus the A700.

Factoring in size and weight, the portability rating of the A7R III and A700 is 63 and 58 respectively.

Oftentimes, its difficult to picture the contrast in sensor measurements only by researching a spec sheet. The graphic below might offer you a much better sense of the sensor dimensions in the A7R III and A700.

Clearly, both of the cameras have got different resolutions and different sensor measurements. The A7R III with its bigger sensor is going to make shooting shallow DOF easier and the Sony A7R III will provide you with more detail with its extra 30MP. Higher resolution will enable you to crop shots much more aggressively. The more recent A7R III provides an advantage when it comes to sensor innovation.