In a previous post, I wrote about buying the new Nikon Z 6 II and wanting to put its upgraded autofocus system to the test. I wasn’t able to do that then, but now I have. And I like what I’m seeing.

If you want to challenge an autofocus system, look for fast-moving action that comes towards you, fairly close. That forces autofocus to move lens elements the most, quickly, and also tests how well the system anticipates. Yes, it needs to “anticipate” where the action will be. When you press the shutter button to take a photo, the subject will already have moved closer to you. That means the camera has to predict where the subject will be when the shutter actually opens. Not surprisingly, that’s referred to as “predictive” autofocus. You also want the system to be able to stick with a subject that moves erratically, so that if your framing briefly shifts, the autofocus doesn’t move to another subject. For testing autofocus, people running towards you, moving left and right, checks most of those boxes.

There’s a large soccer complex down the road from where we live, and the first weekend of December it was host to a regional tournament. So I grabbed my new Z 6 II and headed there. Over the course of two hours, I shot close to 2000 frames (on just one battery, and not even the new model that the camera ships with). Here are the settings I used most of the time:

  • Aperture Priority, wide open at f/4 (to maximize shallow depth of field and avoid depth of field hiding where the focus actually was)
  • Auto ISO, 200 minimum, 4000 maximum, to maintain a minimum of 1/1600 second.
  • JPEG Fine (best quality). Normally I’d shoot RAW, but Adobe had yet to push an update to allow their software to read the NEF files from this new camera (now they have).
  • Continuous High frame rate. With JPEG, and my autofocus settings, that meant I was shooting at 12 frames/second. (Note: the camera is capable of 14 fps, but only in Single Point AF, which I wasn’t using).
  • Wide-area AF (Large) autofocus area mode. With my original Z 6, I normally shot action like this in Wide-area (Small), but an old friend who’s been shooting pro football with the Z 6 II has had good success with Large, so I used it.
  • Nikkor 200-400mm f/4 lens with Focus Limiter switch set to “On,” VR off, and on a monopod.

Here’s a sixty-frame sequence from the Z 6 II at 12 frames-per-second. You can see those frames as a video, below.

Bottom line, the system performed very well. In the sixty-frame sequence shown below (as a screen-grabbed video), it never lost focus. That was the longest burst I had, and saw the same performance in shorter bursts. You can also watch the EXIF info in the upper right (thanks to Photo Mechanic) and see that the time covered was five seconds and Auto ISO made sure the shutter speed never dropped below 1/1600. Note also how I zoomed the lens out as the action approached me, challenging the autofocus further, until the player got too close and lost the ball. My “hit” rate of in-focus pictures that afternoon was around 90% or higher, and most importantly, the focus almost always stayed with the player I was following after acquiring focus.

The Z 6 II also has a reduced“blackout” time when shooting bursts. Most mirrorless cameras do this, which results in a “stutter” effect that can make following fast action more difficult than with mirrored cameras (which also have a mirror blackout, but with a different look). Nikon has shortened that blackout time, and I did find following action easier. Note in the sixty-frame burst I’m able to keep the primary player near the center of the frame as she moves left and right. I still find it easier to do that with a mirrored camera, but that may be just because it’s what I’m used to. I expect the more I use the Z for action, the more I’ll adapt to the new look. Time will tell

In addition to focus, the greatly expanded buffer had no trouble maintaining that 12 frames per second rate, especially with the SanDisk Extreme Pro CFexpress card I was using. While Nikon added a second card slot (SD) to the new camera, I doubt I’ll use that much since the other slot allows for much faster cards, and I’ve never had a card failure. Thanks to the additional Expeed 6  processor, I can now shoot about three times longer on high-speed burst than before without worrying about filling the buffer.

What else? The autofocus seemed a bit quicker to initially acquire focus. Nikon has also added people and animals (dogs and cats) options in the Wide-area (L) AF-area mode, which I’ve used a bit so far and seem to work well (as well as making it easier to choose people or animals for the “Auto” mode). Another welcome feature is that the camera is faster to wake from sleep (power-saving mode). The original Z 6 would wake, but with the viewfinder in a dimmed state and then brighten. The new model now wakes up bright-eyed. The camera can also focus in less light than before, supposedly down into moonlight. As someone who enjoys doing night photography, I look forward to taking advantage of that

For those of us who use Live View to frame occasionally (I often put my camera down at ground level, or hold it just above water), Nikon added the ability to turn the information displays off while using Live View. Previously, having ISO, shutter speed, aperture and more overlaying the image area could make careful framing difficult. By default, you can activate that with the video record button. Unfortunately, I like to program that button to allow me to change autofocus area modes without having to take the camera down from my eye (which is great!). So when I do want that feature, I’ll go into Custom Controls and change it.

On the original Z 6 the virtual horizon display, which you could turn on in the viewfinder, was fairly large and distracting. When doing landscape photography, I like being able to see that all the time to help me keep my framing level. On the original Z 6, that was fairly large and distracting. The II has dimmed it and made it less obtrusive, which is great. I’m still hoping that at some point Nikon will let us have both the virtual horizon AND the live histogram visible at the same time. That would be a nice enhancement.

Here’s the virtual horizon display you can turn on in the original Z cameras.

And this is the less obtrusive version found in the Z 6 II and Z 7 II.

The one thing I didn’t do that day was shoot the original Z 6 alongside the new one. So I returned the following weekend. What surprised me, and shouldn’t have, was how well that camera also performed. I’ve always said that autofocus on the Z 6 (as well as the original Z 7 and Z 50) for fast action was good but not great, as compared to my D5, D850 and D500 (which shared Nikon’s top-of-the-line autofocus system). Despite that, I’ve shot professional football, baseball, NCAA basketball and ski racing with those Z cameras and made good pictures. Returning to the soccer field with the Z 6 reminded me how good its autofocus actually was, and still is. The camera was just a bit slower to acquire at times, and occasionally lost focus while tracking. But all in all, it did a very good job too. And the Z 6 II improves on that.

Here’s a 44-frame sequence from the original Z 6 of a player dribbling towards me, similar to the series from the Z 6 II earlier. As I was reminded, this camera’s AF system is no slouch.

While I’ve primarily shot with Nikon’s Z cameras since their introduction, I’ve still gone back to my high-end mirrored Nikons for fast action when I had to be sure my autofocus was “there” for almost every frame (remember, no system’s perfect). Now I’ll start shifting more of that work to the Z 6 II (and soon, hopefully, the Z 7 II as well). I believe that once I commit more fully to the Z system for action, I’ll adjust to things like the blackout and feel as confident following action as I have been with my mirrored cameras. And, as these are nice upgrades to the original 6 and 7, I look forward to what I’m sure Nikon is planning as the next step – a whole new generation of mirrorless cameras, with even more advanced features. That gives me one more reason to look forward to 2021!

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