Sony A7R III vs Sony A77 II

Following is a comprehensive assessment of the Sony A7R III and Sony A77 II, former is a Pro Mirrorless while the latter is a Advanced DSLR and both of them are produced by Sony. There is a large difference among the image resolutions of the A7R III (42MP) and A77 II (24MP) and the A7R III (Full frame) and A77 II (APS-C) come with different sensor sizing.

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The A7R III was released 3 years after the A77 II which is a fairly serious difference as far as camera tech is concerned. Each of the cameras offer different body type with the Sony A7R III being a SLR-style mirrorless camera and the Sony A77 II being a Mid-size SLR camera.

Before diving in to a comprehensive comparison, below is a brief synopsis of how the A7R III matches up vs the A77 II for portability, imaging, features and an overall score.

Here is a preview of the gallery images for Sony Alpha A7R III & Sony SLT-A77 II. The complete galleries are viewable at Sony A7R III Gallery & Sony A77 II Gallery.

In case you're aiming to carry around your camera frequently, you will have to factor in its weight and proportions. The Sony A7R III provides external dimensions of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") having a weight of 657 grams (1.45 lbs) and the Sony A77 II has measurements of 143mm x 104mm x 81mm (5.6" x 4.1" x 3.2") and a weight of 647 grams (1.43 lbs).

Analyze the Sony A7R III and Sony A77 II in our completely new Camera plus Lens Size Comparison Tool.

Keep in mind, the weight of an ILC will differ dependant on the lens you have attached at the time. Here is the front view physical size comparison of the A7R III against the A77 II.

Taking into consideration size and weight, the portability grade of the A7R III and A77 II is 63 and 62 respectively.

In many cases, it can be difficult to visualize the contrast in sensor sizes merely by going through specifications. The picture below will help give you a clearer sense of the sensor sizes in the A7R III and A77 II.

To sum up, each of the cameras enjoy different megapixels and different sensor sizes. The A7R III due to its bigger sensor is going to make achieving shallower DOF simpler and the Sony A7R III will show greater detail as a result of its extra 18MP. Higher resolution will also let you crop shots far more aggressively. The fresher A7R III provides an advantage with regard to sensor innovation.