Pentax 21660, 21717, 21740, 21580, 21650, 21760, 21507 Using Autofocus, Focusing with the OK Button

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15

Using Autofocus

Set the focus mode to autofocus. Press the shutter release button halfway to autofocus.

With the , or camera, you can also press the AF button to autofocus. See page 14 for information about changing the focus mode.

Focusing with the OK Button

With the	,	,	,		,	,	,
or	camera set as explained below, autofocusing by pressing the shutter release
button halfway will be disabled and the OK button can be used instead to autofocus.
/	/		/	/	/	/	/	:
On the C Custom menu, select “Enable AF” for “OK btn when shooting”.
"Memo:

• For details on the setting procedure, refer to the camera operating manual.

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Contents Smc PENTAX-DA Interchangeable Lens Foreword Using Your Lens Safely Precautions and Lens Maintenance CONTENTS3 Attaching the Lens Hood Precautions When Using the Lens with a Flash Features of the smc PENTAX-DA Lens Smc PENTAX-DA Lens KAF-mount KAF2-mount KAF3-mount About the DA lens mountSupersonic motor compatible camera body About lenses with a supersonic motorHow to Check and Update the Firmware To mount the lens on the camera body Mounting and Removing the LensMemo To remove the lensLens CAP Attaching the dedicated lens cap to DA 40mm f/2.8 Limited For the DA lens FocusingChanging the Focus Mode Focusing with the OK Button Using AutofocusDA 18-250mm f/3.5-6.3ED AL if Using the Quick-Shift Focus System Using Manual FocusUsing Autofocus How to use the Quick-Shift Focus SystemMemo DA 200mm f/2.8ED if SDM, DA 300mm f/4ED if SDM focusing Close-distance scale Zoom Lens About the zoom ring Red line About the zoom lock switchMagnification Scale Macro LensScrew-on Type DA 70mm f/2.4 Limited dedicated lens hood Attaching the Lens HoodLens hood attaching index Bayonet Type DA 21mm f/3.2 AL Limited dedicated lens hood About the PL filter window How to use the lens hood with polarizing filter window Built-in lens hood Filters Precaution on filtersPage Memo Circular polarizing filters and vignetting Compatibility table for Pentax circular polarizing filters SDM YES Memo External Flash Built-in FlashZDA 14mm f/2.8ED if ZDA 21mm f/3.2 AL LimitedZDA 16-50mm f/2.8ED AL if SDM zDA 16-45mm f/4ED AL ZDA 12-24mm f/4ED AL ifCompatibility of DA Lenses with the Built-in Flash Compatibility Lens DA 50-200mm f/4-5.6ED Camera position shift lock screw Tripod Mount Tripod MountRemoving the Tripod Mount Main Specifications Lens DA 40mm f/2.8 Limited DA 70mm f/2.4 Limited 300mm equivalent to Lens DA 16-45mm f/4ED AL DA18-55mm f/3.5-5.6 AL DA 50-135mm f/2.8ED if SDM Statement of FCC Compliance Memo CE Mark is a Directive conformity mark of the European Union