Pentax K-X User Manual

164
Using the Flash
5
4 Confirm that the external flash is fully charged and then
take a picture.
With the AF540FGZ or AF360FGZ, you can discharge the flash to take a
picture at a shutter speed faster than 1/180 seconds.
1 Remove the cover of the hot shoe and attach the external
flash (AF540FGZ or AF360FGZ) to the camera.
2 Set the mode dial to b or a.
3 Turn on the camera and the external flash.
4 Set the external flash sync mode to HSb (high-speed
flash sync).
5 Confirm that the external flash is fully charged and then
take a picture.
• P-TTL auto is only available with an AF540FGZ, AF360FGZ, AF200FG or
AF160FC flash unit.
• The b will light in the viewfinder when the flash is ready (fully charged).
• For details such as operation method and effective distance, please refer to
the external flash manual.
• The flash does not discharge if the subject is bright enough when the flash
mode is set to C or i. Therefore, it may not be suitable for daylight-sync
shooting.
• Never press the K/i button when any external flash unit is attached to
the camera. The built-in flash will hit the external flash. If you want to use both
at once, set the wireless mode or connect them using the extension cord.
(p.169).
Using High-Speed Flash Sync Mode
• The b will light in the viewfinder when the flash is ready (fully charged).
• High-speed flash sync is available only when the shutter speed is set faster
than 1/180 sec.
• High-speed flash sync is not available when the shutter speed is set to h.

Pentax K-X Specifications

General

Megapixel	12.4 MP
Camera type	SLR Camera Body
Sensor type	CMOS
Image stabilizer	Yes
Maximum image resolution	4288 x 2848 pixels
Digital zoom	0 x
Interface	USB
Color depth	12 bit
Dimensions (WxDxH)	122.5 x 67.5 x 91.5 mm
Camera shutter speed	30 - 1/6000 s
Effective sensor resolution	12400000 pixels
Compatible operating systems	Windows XP/Vista/7 Mac OS-X 10.3-10.5
Auto focusing (AF) modes	continuous auto focus, single auto focus
Flash modes	auto, Flash off, manual
Flash guide number	16 m
Motion JPEG frame rate	24, 4.7 fps
Video formats supported	AVI
Maximum video resolution	1280 x 720 pixels
Display diagonal	2.7 \
Display resolution (numeric)	230000 pixels
Magnification	0.85X x
USB version	2.0
Product color	Black
Scene modes	beach, Candlelight, Children, Close-up (macro), Museum, Night landscape, Night portrait, Portrait, Sunset, Landscape (scenery)
Image editing	Rotating
Photo effects	black&white, Muted, Neutral, Sepia
White balance	auto, Cloudy, daylight, flash, Fluorescent, manual, Shade
Camera playback	single image, slide show
Playback zoom (max)	16 x
Battery type	AA
Number of batteries supported	4
Bundled software	Pentax Digital Camera Utility 4.0
Operating temperature (T-T)	32 - 104 °F
Compatible memory cards	sd, sdhc
Light exposure modes	aperture priority AE, auto, shutter priority AE
Camera shutter type	Electronic

Weight and Dimensions

Depth	67.5 mm
Width	122.5 mm
Height	91.5 mm
Weight	515 g