Nikon Z9 Mirrorless Camera - Manual (Page 112)

112 Focus
D Cautions: Autofocus
• The camera may be unable to focus if:
- the subject contains lines parallel to the long edge of the frame,
- the subject lacks contrast,
- the subject in the focus point contains areas of sharply contrasting
brightness,
- the focus point includes night-time spot lighting or a neon sign or other
light source that changes in brightness,
- flicker or banding appears under fluorescent, mercury-vapor, sodium-
vapor, or similar lighting,
- a cross (star) filter or other special filter is used,
- the subject appears smaller than the focus point, or
- the subject is dominated by regular geometric patterns (e.g., blinds or a
row of windows in a skyscraper).
• The display may brighten or darken while the camera focuses.
• The focus point may sometimes be displayed in green when the camera is
unable to focus.
• The camera may take longer to focus when lighting is poor.
A Low-Light AF
For improved focus when shooting under low light, select [ ON ] for Custom
Setting d9 [ Starlight view (photo Lv) ]. This option takes effect only in photo
mode.