Nikon D70S User Manual download pdf (Page 74)

Taking Photographs—Focus

Focus

Controlling How the Camera Focuses

This section describes the options that control how your camera focuses:

fo cus mode, focus-area selection, and AF-area mode.

Focus Mode

Focus mode is controlled by the focus mode se-

lec tor on the front of the camera. Two modes are

available:

VIDEO

OUT

VIDEO

OUT

Camera focuses automatically when shutter-release button is pressed

half way. Operation depends on option selected for Custom Setting 2

(Autofocus; 139):

• AF-S (single-servo autofocus): When camera focuses, beep sounds

and in-focus indicator (●) appears in view ﬁ nd er. Focus re mains locked

while shutter-release button is pressed halfway (focus lock). Shut ter

can only be re leased when in-fo cus in di ca tor is dis played (focus pri-

or i ty). If sub ject was mov ing when shutter-release button was pressed

half way, cam era will track sub ject until fo cus ing is complete and the

shut ter can be re leased (pre dic tive fo cus tracking; 65). If subject

stops mov ing before shutter is released, in-focus in di ca tor will ap pear

in viewﬁ nder and focus will lock at this dis tance.

• AF-C (continuous-servo autofocus): Camera focuses continuously

while shutter-release but ton is pressed halfway. If subject moves, fo-

cus will be adjusted to compensate (predictive fo cus tracking; 65).

Pho to graphs can be taken whether or not camera is in focus (release

priority).

Autofocus

DescriptionOption

Camera does not focus automatically; focus must be adjusted manually

using the lens focusing ring. If max i mum aperture of lens is f/5.6 or

faster, view ﬁ nd er fo cus in di ca tor can be used to con ﬁ rm focus (elec-

tronic range ﬁ nd ing; 74), but photographs can be taken at any time,

wheth er or not camera is in focus.

Man u al

Choosing single-servo AF ensures a sharp, focused image. Continuous-servo

AF may be a better choice with erratically-moving subjects. Man u al fo cus is

rec om mend ed when the cam era is unable to focus using autofocus.

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Nikon D70S User Manual Page 74