Sony A7R III vs Sony A900

Here, we will be contrasting the Sony A7R III and Sony A900, one is a Pro Mirrorless and the latter is a Advanced DSLR and both are sold by Sony. There is a huge difference between the image resolutions of the A7R III (42MP) and A900 (25MP) but both cameras offer the identical sensor size (Full frame).

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The A7R III was released 9 years after the A900 which is quite a significant gap as far as tech is concerned. The two cameras feature different body design with the Sony A7R III being a SLR-style mirrorless camera and the Sony A900 being a Mid-size SLR camera.

Before getting straight to a detailed comparison, here is a concise synopsis of how the A7R III matches up against the A900 in regards to portability, imaging, features and an overall mark.

This is a preview of the gallery images for Sony Alpha A7R III and Sony Alpha DSLR-A900. The complete galleries are provided at Sony A7R III Gallery and Sony A900 Gallery.

For those who are going to travel with your camera regularly, you'll have to take into account its weight and size. The Sony A7R III enjoys outer 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 A900 has specifications of 156mm x 117mm x 82mm (6.1" x 4.6" x 3.2") along with a weight of 895 grams (1.97 lbs).

Analyze the Sony A7R III and Sony A900 in the all new Camera with Lens Size Comparison Tool.

Take into account, the weight of an Interchangeable Lens Camera will vary dependant on the lens you have at that time. Underneath is a front view sizing comparison of the A7R III against the A900.

Using size and weight, the portability grade of the A7R III and A900 is 63 and 54 respectively.

Generally, its tough to envision the contrast between sensor dimensions purely by reading a spec sheet. The pic here may give you a greater sense of the sensor sizes in the A7R III and A900.

As you can see, both of these cameras feature the identical sensor size albeit not the same MP. You should expect the Sony A7R III to offer you more detail as a result of its extra 17 Megapixels. Higher resolution will let you crop pictures way more aggressively. The fresher A7R III is going to have an edge with regard to sensor innovation.