Pentax DA 10-17mm Fish-eye F3.5-4.5 ED (IF) Operating Guide
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How to use the Quick-Shift Focus System
1. Using Autofocus
Set the focus mode switch to autofocus, then press the shutter release button halfway to
autofocus.
With the
autofocus.
With the
,
or
camera, you can also press the AF button to focus.
With
the ,
, , , , ,
or
camera set as explained in “Focusing with the OK Button” on page
14, you can focus by pressing the OK button.
2. Hold down the shutter release button halfway (or hold down the AF button or OK
button), then turn the focusing ring to finely adjust focus.
3. Finally, press the shutter release button fully to take a picture.
The focusing ring on some lenses may rotate during autofocus.
• Do not touch the focusing ring while autofocus is operating as it may cause a
• Do not touch the focusing ring while autofocus is operating as it may cause a
malfunction. For more information see “CAUTION” on page 15.
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