SIGMA DP3 Quattro - Manual (Page 50)

50
AF AUXILIARY LIGHT
The built-in AF auxiliary light of the dp3 Quattro enables focusing in low
light conditions.

The effective distance of the AF auxiliary light is 3m.

The AF auxiliary light can be turned off. Please set [ Capture
Settings] (P.27) → [AF Auxiliary Light] → [Off].
SETTING THE FOCUS FRAME
The dp3 Quattro is equipped with two focusing modes. When using the “9
points select mode” it is possible to choose the desired focusing point from
9 different frames. When using “Free move mode” it is possible to move the
desired point as you like. In addition, you can choose the size of the Focus
Frame from three types [Spot], [Regular], [Large].
9 points select mode Free move mode
Focusing point moving area
How to set：
Press the button.

[9 points select mode] and [Free move mode] will be switched back and
forth each time the button is pressed.

When [9 points select mode] is selected, choose the desired focusing
point by pressing the buttons.

When [Free move mode] is selected, move the focusing point as you like
by pressing the buttons (focusing points can be moved inside the
focusing point moving area).

When the Front Dial or the Rear Dial is rotated, you can change the size
of the Focus Frame.
Confirm by pressing the button.