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Pentax K-X User Manual

Pentax K-X
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67
Basic Operations
3
Using the Built-in Flash
Use the following procedures to take pictures in low light or backlit
conditions or when you want to use the built-in flash.
The built-in flash is optimum at about 0.7 m to 5 m from the subject.
Exposure will not be properly controlled and vignetting (darkening of the
corners of the image due to a lack of light) may occur when used at a
distance closer than 0.7 m (this distance varies slightly depending on the
lens being used and the set sensitivity (p.160)).
For details on the built-in flash and instructions on how to take pictures with an
external flash, refer to the “Using the Flash” (p.155).
Setting the Flash Mode
Flash Mode Function
C
Auto Flash
Discharge
The camera automatically measures the ambient light
and determines whether to use the flash. The flash
pops up and discharges automatically when necessary,
such as when using a shutter speed likely to cause
camera shake or in backlit conditions (except when in
s (Landscape), \ (Moving Object) or l (Night Snap)
in H (Scene) mode). The flash may pop up but may
not discharge if the camera determines that the flash is
not necessary.
b
Manual Flash
Discharge
Discharges the flash manually. Discharges when the
flash is popped up, does not discharge when retracted.
Compatibility of built-in flash and lens
Vignetting may occur depending on the lens being used and the
capture conditions. We recommend taking a test shot to check the
compatibility.
1 Lens Compatibility with the Built-in Flash (p.161)
When using the built-in flash, remove the lens hood before shooting.
The built-in flash fully discharges for lenses without a function to set
aperture lens ring to s (Auto).

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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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