Sigma SD15 Digital Camera User Manual


 
51
FOCUSING
Adjustment of autofocus and manual focus operation are
explained below.
HOW TO USE AUTOFOCUS
It is possible to use Autofocus function only with AF Lenses. Your camera is
equipped with highly precise AF System and incorporates two different
autofocus modes.(In the case of Mirror lenses and some specialized lenses,
the camera can be use only in Manual Focus mode).
SETTING THE AUTOFOCUS MODE
1
Set the focus mode switch of the lens, to AF.
2
Decide the composition through the
viewfinder and press the shutter button
halfway (if the autofocusing is selected, the
camera confirms focusing with an electronic
sound and a red “in-focus” indicator appears
in the viewfinder).
Although your camera is equipped with highly precise AF system, in some
cases autofocus cannot set correctly.
Low-contrast subjects, such as blue sky or blank wall, etc. or when the color of
the subject is same as background.
The subject is located in a very low light environment
Overlapping near and far objects, such as an animal behind a fence
A subject, which moves with a high speed
Subjects, which have repeated patterns such as building windows.
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.