Nikon N75 Instruction Manual page 25

• Situations where autofocus may not work as expected
Autofocus may not work as expected in the following situations. In such
situations, focus manually using the clear matte field (page 45) or focus on
a different subject located at the same distance, use focus lock (page 52)
then recompose.
Low-contrast scenes
For example, where the subject is wearing clothing the
same color as a wall or other background.
Scenes with subjects within the focus brackets
located at different distances from the camera
For example, when photographing an animal in a cage or
a person in a forest.
Patterned subject or scene
For example, building windows.
Scenes with pronounced differences in
brightness within the focus brackets
For example, when the sun is in the background and the
main subject is in shadow.
25