Dan and Sally Watson over at Learning Cameras recently put together a really useful comparison video that pits the Sony, Canon, and Nikon fanboys against each other in a series of real-world tests. Shooting with the Sony a7R III, Canon 5D Mark IV, and Nikon D850, Dan and Sally ran the cameras through a variety of tests that cover everything from skin tones, to low light, to dynamic range, to autofocus tracking and more.
We’ll let you dive into the full 20-minute video if you want to see all of the comparisons for yourself, but one that we found particularly interesting—maybe because it confirmed our own tests—was the autofocus tracking comparison.
The Sony and Canon were shot in Auto AF area mode—Sony at 8 fps with live view, Canon and Nikon at 7 fps—and Dan and Sally found pretty much what we did. At 8 fps live view, the a7R III sometimes just goes out-of-focus then snaps back, Canon’s iTR can be very jumpy, and Nikon’s 3D tracking is more or less perfect. For what it’s worth (since Dan and Sally didn’t test this) in our tests, the Sony performed more consistently at 10fps without live view.
For the full breakdown, check out the video for yourself above—it gets the DPReview stamp of approval for being both entertaining and informative. And if you want to see more from Learning Cameras, you can follow the channel on YouTube, or catch Dan on Facebook and Instagram.