AF-P (Nikon)

This is a new autofocus technology being introduced by Nikon in its consumer-level lenses. It used different autofocus actuators to its existing AF-S (Supersonic Wave) lenses. The AF-P system uses stepper motors for a fast, quiet and smooth autofocus action that’s especially well suited to video, where you don’t want fast, sharp focus movements or audible motors that you can hear in the video.