Nikon D300 D300 User's Manual - Page 353

Non-CPU Lens Data By specifying lens data (lens focal length and maximum aperture) for up to nine non-CPU lenses, the user can gain access to a variety of CPU lens functions (pg. 196). AF Fine Tune Fine-tune focus for up to 12 lens types. AF tuning is not recommended in most situations; use only when required. Option Description AF fine tune • [On]: Turn AF tuning on. (On/ • [Off ] (default): Turn AF tuning off. Off ) Tune AF for the current lens (CPU Move focal lenses only). Press 1 or 3 to choose point away Saved a value between +20 and -20. from camera. value Values for up to 12 lens types can be stored. Only one value can be stored for each type of lens. Current value Choose the AF tuning value used Default when no previously saved value exists for the current lens (CPU lenses only). Move focal point toward camera. Previous value U 327