Canon 40D vs Sony A7R III

On this page, we will be matching up the Canon 40D and Sony A7R III, one being a Advanced DSLR and the latter is a Pro Mirrorless by competitors Canon and Sony. There exists a significant gap among the image resolutions of the 40D (10MP) and A7R III (42MP) and the 40D (APS-C) and A7R III (Full frame) have different sensor size.

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The 40D was revealed 11 years prior to the A7R III and that is a fairly sizable gap as far as camera technology is concerned. Both the cameras have different body design with the Canon 40D being a Mid-size SLR camera and the Sony A7R III being a SLR-style mirrorless camera.

Before getting straight to a in-depth comparison, here is a brief synopsis of how the 40D grades versus the A7R III in regards to portability, imaging, features and an overall rating.

Following is a preview of the gallery images for Canon EOS 40D and Sony Alpha A7R III. The full galleries are available at Canon 40D Gallery and Sony A7R III Gallery.

If you are intending to carry your camera regularly, you should factor its weight and measurements. The Canon 40D provides outside dimensions of 146mm x 108mm x 74mm (5.7" x 4.3" x 2.9") accompanied by a weight of 822 grams (1.81 lbs) whilst the Sony A7R III has proportions of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") having a weight of 657 grams (1.45 lbs).

Contrast the Canon 40D and Sony A7R III in the new Camera with Lens Size Comparison Tool.

Don't forget, the weight of an Interchangeable Lens Camera will vary based on the lens you choose during that time. Underneath is a front view over all size comparison of the 40D compared to the A7R III.

Taking into consideration dimensions and weight, the portability rating of the 40D and A7R III is 57 and 63 respectively.

More often than not, its hard to visualize the gap in sensor sizing simply by checking out specifications. The graphic underneath should offer you a far better sense of the sensor dimensions in the 40D and A7R III.

Plainly, both of these cameras provide different megapixel count and different sensor sizing. The 40D with its smaller sensor is going to make achieving bokeh tougher and the Sony A7R III will show extra detail because of its extra 32 Megapixels. Higher resolution can also help you crop photographs more aggressively. The older 40D will be behind when it comes to sensor innovation.