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Pentax K-X User Manual

Pentax K-X
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65
Basic Operations
3
Subjects that are difficult to focus on
The autofocus mechanism is not perfect. Focusing may be difficult
when taking pictures under the following conditions. These also apply
to manual focusing using the focus indicator ] in the viewfinder.
(a) Extremely low-contrast subjects such as a white wall in the
focusing area
(b) Subjects which do not reflect much light within the focusing
area
(c) Fast moving objects
(d) Strongly reflected light or strong backlighting (bright
background)
(e) If repeating vertical or horizontal line patterns appear within
the focusing area
(f) Multiple subjects in the foreground and background within the
focusing area
If the subject cannot be focused automatically, set the focus mode
lever to \ and use the manual focus mode to focus on the subject
with the aid of the matte field in the viewfinder. (p.122)
The subject may not be focused even when the ] (focus indicator) is
displayed when (e) and (f) above apply.

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Pentax K-X Specifications

General IconGeneral
Megapixel12.4 MP
Camera typeSLR Camera Body
Sensor typeCMOS
Image stabilizerYes
Maximum image resolution4288 x 2848 pixels
Digital zoom0 x
InterfaceUSB
Color depth12 bit
Dimensions (WxDxH)122.5 x 67.5 x 91.5 mm
Camera shutter speed30 - 1/6000 s
Effective sensor resolution12400000 pixels
Compatible operating systemsWindows XP/Vista/7 Mac OS-X 10.3-10.5
Auto focusing (AF) modescontinuous auto focus, single auto focus
Flash modesauto, Flash off, manual
Flash guide number16 m
Motion JPEG frame rate24, 4.7 fps
Video formats supportedAVI
Maximum video resolution1280 x 720 pixels
Display diagonal2.7 \
Display resolution (numeric)230000 pixels
Magnification0.85X x
USB version2.0
Product colorBlack
Scene modesbeach, Candlelight, Children, Close-up (macro), Museum, Night landscape, Night portrait, Portrait, Sunset, Landscape (scenery)
Image editingRotating
Photo effectsblack&white, Muted, Neutral, Sepia
White balanceauto, Cloudy, daylight, flash, Fluorescent, manual, Shade
Camera playbacksingle image, slide show
Playback zoom (max)16 x
Battery typeAA
Number of batteries supported4
Bundled softwarePentax Digital Camera Utility 4.0
Operating temperature (T-T)32 - 104 °F
Compatible memory cardssd, sdhc
Light exposure modesaperture priority AE, auto, shutter priority AE
Camera shutter typeElectronic
Weight and Dimensions IconWeight and Dimensions
Depth67.5 mm
Width122.5 mm
Height91.5 mm
Weight515 g

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