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Mirrorless cameras offer firmware updates. They promise genuine improvements or additions to the feature set. And digital camera manufacturers are increasingly prioritizing investment in this market. That means you’ll have more and better lenses to choose from. And there’ll be more and better cameras to buy in the future.
That especially applies to mirrorless autofocus systems. Mirrorless cameras used to use contrast detection rather than phase detection autofocus. This meant their autofocus systems were slower than DSLR full-frame cameras.
But there has been technological progress. And innovations such as face and eye detection and subject tracking have emerged. So the best professional-grade mirrorless cameras are now at the head of the pack. These include the Sony a1, Canon EOS R3, and Nikon Z9.
What is the Best Auto Focusing Camera?
Here’s a quick roundup of all the cameras on our list before we dive into each one in detail.
- Sony a1
- Sony a9 II
- Canon EOS R3
- Canon EOS R5
- Canon EOS R6
- Sony a7R IV
- Nikon Z9
- Nikon Z7 II
- Nikon Z6 II
- Sony a6400
10 Best Cameras for Autofocus in Detail
Sony a1

- Resolution
- 50.1 MP
- Sensor
- Full Frame
- Video
- 8K
- Weight
- 737 g
Highlights
- High frame rate of 30 fps
- Large sensor captures tons of detail
- Eye tracking (human, animal, and bird)
- Incredible 8K / 30p Ultra HD video
Trade-Offs
- Expensive
- Highest frame rates only for JPEG, HEIF, and lossy compressed RAW files
- Eye tracking only selected manually
- Small rear LCD screen
- No GPS
Sony a9 II

- Resolution
- 24.2 MP
- Sensor
- Full Frame
- Video
- 4K
- Weight
- 678 g
Highlights
- Impressive 20 fps continuous shooting
- Lightning-fast autofocus
- Great file transferring speeds
- Improved ergonomics
Trade-Offs
- No in-camera RAW image processing
- Confusing menus
- Battery performance isn't great
- No S-Log video
- Subpar video quality compared to new full-frame cameras
Canon EOS R3

- Resolution
- 24 MP
- Sensor
- Full Frame
- Video
- 6K
- Weight
- 1015 g
Highlights
- A high frame rate of 30 fps
- Less noise with BSI stacked sensor
- 8 stops of image stabilization
- 6K / 60p RAW video
- 620-shot battery life
Trade-Offs
- Relatively expensive
- Low-resolution for some photographers
- No 8K video
- Slowed frame rate with an SD card or low battery
Canon EOS R5 C

- Resolution
- 45 MP
- Sensor
- Full Frame
- Video
- 8K
- Weight
- 770 g
Highlights
- The photo/video switch allows you to easily switch between shooting modes
- 5-axis In-camera image stabilization
- Compact and lightweight
- Unlimited video recording due to built-in fan preventing overheating
- Reduced video sizes with Cinema RAW Light modes
Trade-Offs
- Expensive
- Limited native lens compatibility
- Continuous AF only covers 80% of the image sensor in video mode
- Bigger than the original EOS R5
- Must use an external battery source for the fastest shooting speeds
Canon EOS R6

- Resolution
- 20.1 MP
- Sensor
- Full Frame
- Video
- 4K
- Weight
- 680 g
Trade-Offs
- Low megapixel count compared to closest competitors
- Interface is challenging to navigate
- EVF drains the battery
- Camera heats up shooting 4K / 60 fps
Sony a7R IV

- Resolution
- 61.2 MP
- Sensor
- Full Frame
- Video
- 4K
- Weight
- 665 g
Trade-Offs
- Long write times
- Poor AF at high frame rates
- No pixel-shift motion compensation
- Complicated menus
- Limited, laggy touchscreen functionality
Nikon Z9

- Resolution
- 46 MP
- Sensor
- Full Frame
- Video
- 8K
- Weight
- 1340 g
Highlights
- Ultra-fast image processor
- High, 120 fps compressed frame rate
- No visible rolling shutter
- Excellent battery life
- 8K/60p Ultra HD video
- Unlimited low-resolution recording
Trade-Offs
- Only 11 MP files at the highest frame
- You can only shoot RAW files at 20 fps
- Tracking can fail with erratic movement
- IBIS not as good as Canon R3
- Autofocus isn't as good for video
- The screen doesn't fully articulate
Nikon Z7 II

- Resolution
- 45.75 MP
- Sensor
- Full Frame
- Video
- 4K
- Weight
- 705 g
Trade-Offs
- Disappointing battery life of 420 shots
- Tilt screen has limited flexibility
- Limited lens range
- Slow frame rate of 10 fps in continuous shooting speed
Nikon Z6 II

- Resolution
- 24.5 MP
- Sensor
- Full Frame
- Video
- 4K
- Weight
- 705 g
Trade-Offs
- Autofocus can be slow
- Relatively short battery life
- Lower MP count than main competitors
- Needs more customizable buttons
Sony a6400

- Resolution
- 24.2 MP
- Sensor
- APS-C
- Video
- 4K
- Weight
- 403 g
Trade-Offs
- No in-camera RAW image editing
- No in-body image stabilization
- Screen tilts but no further articulation
- Complicated menu system
Our Verdict
A large part of the reason I switched from DSLR to mirrorless cameras is the autofocus system. I’m a wildlife photographer. And the advent of face and eye detection and tracking was a game-changer. I wanted the best platform to capture action shots of animals in the bush. And it delivers!
I have no regrets. The Sony a1 is a great camera. And I’m sure I’ll enjoy future firmware updates. They’ll enhance its impressive autofocus capabilities even further.
Nikon, and especially Canon, are catching up. And the performance differences between top cameras are getting harder and harder to spot.
The Sony a1, Canon R3, and Nikon Z9 might be the flagship models from the best camera brands today. But who knows what features and inventions are yet to come?
Best Auto Focusing Cameras FAQs
These are the most common questions about buying a good autofocus camera. We hope it helps answer your own questions!
What is the best autofocus camera for video?
The best autofocus systems are on Sony cameras. And the Sony a1 offers the best with 8K video. But it’s not cheap. So the a7R IV might be more suitable. And the a7S III is also great for vlogging.

Which mirrorless camera has the best autofocus?
It’s getting tighter and tighter between the main contenders. But Sony cameras had a head start. And Canon has only started to catch up in the last couple of years. That means the Sony a1 is probably just ahead of the Canon R3. But the R3 does have some cool features like Eye Control AF.
Which camera has the fastest autofocus?
It’s hard to measure these things independently. But Sony claims that title for the a6400. It apparently finds focus in only 0.02 s!
What is the fastest autofocus DSLR?
The Canon EOS 1 DX Mark III has the company’s excellent Dual Pixel AF system. And it works in Live View like mirrorless cameras. For Nikon, the D850 and D6 have great autofocus systems. They track moving subjects well, especially when using 3D continuous AF.
What is eye detection?
Eye detection is a feature that’s now common on modern mirrorless cameras. It’s when the camera can find the nearest eye of any subject and focus on it. That’s whether it belongs to a human, animal, or even a bird. If you have a Sony or Canon camera, it tracks it across the frame… whatever autofocus mode you’re in. The same goes for face detection.

