Sigma sd Quattro, Руководство пользователя

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AUTOFOCUS MODE OPERATION
Operation of each Autofocus mode can be changed as follows.
Set from [
Capture Settings
] (P.30) to
[
Priority
] or to [
Priority ].
Release
When the shutter button is fully pressed, the
shutter can be released before focus locks on.
Focus
(Default)
Even when the shutter button is fully pressed, the
shutter cannot be released until it comes into
focus.

In , when Continuous Drive Mode is set, continuous shooting is
conducted with the focus of the first frame in any settings.

In , when Continuous Drive Mode is set, Autofocus Drive and
shooting are repeatedly continued. However, Release is prioritized in
both settings. Therefore, the shutter may be released before focus locks
on.
AF ASSIST LIGHT
The built-in AF assist light of the sd Quattro enables focusing in low light
conditions. ( only)

The effective distance of the AF assist light is 3m.

The AF assist light can be turned off. Please set [ Capture Settings ]
(P.30)
→
[ Built-in AF Assist Light ]
→
[ Off ].
CAUTION!!

The lens hood must be removed when the AF auxiliary light is used.
The AF Auxilary Light may not work correctly if long and large diameter
lenses are attached to the camera as they may interfere with the beam.