Sigma SD1 Manuel d'utilisateur télécharger pdf (Page 57)

In such cases, please use one of the following focusing methods.

1. Use the Focus Lock function to focus on another subject, which has a similar

focusing distance as your subject.

2. Set the lens to MF mode and focus manually.

SELECTING THE AUTOFOCUS MODE

It is possible to set the Autofocus mode from the Quick Set Menu (P.3 7) or

the Function Display (P. 35 ).

(Default)

SINGLE AF MODE

Depress and hold the shutter button halfway to activate the

autofocus function. In order to avoid out of focus exposures, the

shutter cannot be released until the subject is in focus. This is called

“focus priority”. The Focus Indicator lights up in the viewfinder, when

the AF Point Selection is focused on the subject and the focus is

locked. Press the shutter button the rest of the way to take the

picture. If the camera cannot focus on the subject properly, remove

your finger from the shutter button and press again.

z Focus indicator will blink, if the subject is out of focus.

z Use your camera in this mode for regular photography

z It is possible to turn the electronic sound off. Please set [

Camera Settings] (P. 28 ) → [AF Beep] → [Off].

CONTINUOUS AF MODE

Press the shutter button halfway to activate the autofocus function.

If the subject is in motion, the camera will focus continuously with

motion prediction function. You can release the shutter any time,

even if the subject is not precisely in focus. However, depending on

the subject situation, (i.e. speed and direction of moving subject, the

lens and shutter speed etc.) there is a possibility that the picture

may be out of focus.

z Focus indicator will not appear.

z Autofocus lock does not work.

z Depending on some unusual conditions of the subject, sometimes

autofocusing is not possible.

z When the Automatic Selection mode of the AF Point Selection is

selected, the camera automatically selects the initial focus point

for tracking the subject.

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Sigma SD1 Manuel d'utilisateur Page 57