Pentax DA 14mm f/2.8ED (IF) Operating Manual page 13

CAUTION
During autofocusing, the focusing ring of following lenses will rotate.
• To prevent malfunction, do not touch the focusing ring during autofocusing.
- DA 16-45mm f/4ED AL
- DA 18-55mm f/3.5-5.6 AL
- DA 40mm f/2.8 Limited
• When using the Quick-Shift Focus System, keep pressing the shutter button (or AF
button) after you achieve focus and before taking a picture. If you let go of the shutter
button before taking the picture, you will have to focus all over again when you press
the shutter button again.
In the following cases, you can take the picture without autofocusing after letting go
of the shutter button.
• With the
autofocus, press the AF button.
• With the
"3 Cancel AF." While you press the OK button, you can focus manually.
The setting procedure and more details are explained in the camera's instruction
manual.
, set the "AF with Press Halfway" Custom Function to off. To
, in the "C Custom Setting" menu, set "OK btn when shooting" to
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