Nikon F55 Instruction Manual - Page 14

1 Set Focus Mode to AF Set focus mode to AF (autofocus). (See page 46 for details.) Turn the power switch on and set the focus mode selector to AF (autofocus). • Make sure to turn the focus mode selector until it clicks into position. • To focus, lightly press the shutter release button (page 24). • 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 47) 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 colour as a wall or other background. BASIC OPERATION 1 NOTE: AF focus mode Do not rotate the lens focusing ring manually when the focus mode selector is set to AF. Dynamic AF Mode with Closest-Subject Priority Dynamic AF Mode with Closest-Subject Priority automatically focuses on the subject located closest to any of three focus areas (page 48). If the subject moves from the selected focus area, the camera automatically focuses on the subject determining the data from the other focus areas. When the exposure mode is set to a (AUTO mode, page 28) or to any Vari-Program (page 36) (except f Close-Up mode), the F55/F55D automatically selects Dynamic AF Mode with Closest-Subject Priority for easy operation, making it unnecessary to switch the focus area. 26 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. 27