Pentax ist manual Hard-to-Autofocus Subjects

Hard-to-Autofocus Subjects

The autofocus system is highly precise, but not perfect. Depending on the brightness, contrast, shape, and size of your subject, the autofocus system may not operate. In such a case,

set the focus mode switch to and use the manual focus

mode to focus the lens on the subject with the aid of the matte field in the viewfinder (see pages 94 and 95).

Subjects, which may fool the autofocus system, include: a)Extremely low-contrast subjects such as a white wall in the

focus points .

b)Subjects which don't reflect much light in the focus points

.

c)Subjects that are moving too fast.

d)Multiple subjects in the foreground and background of the

focus points	. In this case, the subject may not be in
focus even if the focus indicator		is lit.

e)Subjects positioned against reflected light or strong backlight or with extremely bright backgrounds.

f)If vertical or horizontal line patterns appear in the focus points .

Notes on Accessories

If you use any special effect filter, Magic Image Attachment or Stereo Adapter, autofocus and manual focus using the focus indicator in the viewfinder cannot be used. In this case, use manual focus using the viewfinder's matte field. See page 95.

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BASIC OPERATION	(PREPARATION)
BASIC OPERATION	(SHOOTING)
ADVANCED OPERATIONS
OTHERS