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The Nikon Autofocus System by Mike Hagen

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6

Achieving Great Focus in Video

As I mentioned in chapter 5, AF and video don’t mix well in DSLR cameras. Unfortunately, your camera’s Live View AF system isn’t up to the task of reliably tracking subjects. Perhaps future DSLR video systems will have improved AF technology, but until that day comes, you’ll need to master some additional gear if you want to focus well when you shoot video (figure 6-1).

Difficulties with AF While Shooting DSLR Video

One of the reasons that traditional video cameras, like the Sony Handycam models, handle AF so well is that they have a massive DOF. These video cameras use smaller imaging sensors, which lead to a substantial DOF compared to a DSLR camera. This extra DOF means you don’t have to worry as much about ...

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