Speed

The Focus System's Speed control is only compatible on Z Mount lenses, as it requires tight coordination between the lens and the camera's focus system. Use Speed to set the desired speed of the focus transition performed by the auto focus, or "rack focus" as it is commonly referred. While this parameter may be enabled by some adapted lenses, its values are tuned for NIKKOR Z Mount lenses and may not perform best on adapted lens systems.

The Speed selections for autofocus are -5 to 5, with 0 as the default. A lower speed will result in a slower more gradual rack focus, while a high speed will result in achieving focus as quickly as possible.