Sigma DP2 User Manual download pdf (Page 49)

FOCUSING

Adjustment of autofocus and manual focus operation are

explained below.

HOW TO USE AUTOFOCUS

Position the photographic subject within

the centre of the composition and press

the shutter button “half-way”.

• If autofocus is selected, the focusing point will be illuminated in green. (At

the same time, the auto focus lamp will be illuminated in green.)

• If autofocus cannot set correctly, the focusing point will blink. (At the same

time, the auto focus lamp will blink in red)

When setting AF mode to normal autofocus (without an icon),

the focusing distance is from 28cm to infinity. It is possible

to change AF mode to LIMIT mode (

is displayed) by

pressing the button. In LIMIT mode, the focusing

distance will be from 1m to infinity and the AF speed will be

faster.

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 a 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 at high speed

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.

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Sigma DP2 User Manual Page 49