1. High-quality image reproduction

I.Approximately 12.4 effective megapixels for true-to-life image reproduction
The K-x incorporates a newly developed CMOS image sensor to assure high-speed image data readout and more flexible response to varying ISO sensitivity levels. With approximately 12.4 effective megapixels, this image sensor can faithfully and accurately reproduce true-to-life images with fine detail and rich depth of colors. The K-x not only offers a wide sensitivity range between ISO 200 and ISO 6400, but also allows the user to expand the sensitivity range between ISO 100 and ISO 12800 via a custom function, giving greater creative freedom to more adventurous photographers.
II.High-performance, high-speed PRIME II imaging engine
The K-x features the newly developed PRIME (PENTAX Real Image Engine) II, an upgrade of the original PRIME imaging engine. Thanks to new technologies supplied by Fujitsu Microelectronics Limited, this new imaging engine offers greater data processing speed and enhanced capability to produce higher-quality images with richer, more accurate color rendition, as well as faster transmission speed of movie data.

2. Compact, lightweight body

Despite the incorporation of the large 23.6mm x 15.8mm image sensor, the K-x is one of the most compact, lightweight digital SLR camera in its class. This is due to the combination of a compact, lightweight stainless-steel chassis, a downsized in-body shake reduction mechanism, and state-of-the-art, highly-integrated packaging methodologies that assure the most space-efficient positioning and layout of various parts.

3. Live View function, with Face detection of up to 16 faces

The K-x features the Live View function, which allows the user to view the image on its LCD monitor during shooting, just as for a digital compact camera. The K-x also offers a choice of three different focusing modes during Live View shooting: Contrast AF, which optimizes the focus based on the subject’s contrast; Face Detection AF, which automatically detects up to 16 faces, selects the main subject’s face from multiple faces, then captures it in sharp focus; and Phase Difference AF, which uses the AF sensor positioned in the camera body to optimize focus on the subject.

4. High-quality recording at 1280 x 720 pixels, with HDTV-proportion movie recording at 24 frames per second

The K-x provides a movie recording function* which captures beautiful, true-to-life movie clips in 16:9 high-definition TV proportions (1280 x 720 pixels) at a frame rate of 24 frames per second. This extends the benefits of high-quality SLR photography to the world of movie shooting: For example, reduce the depth of field to make a subject stand out, or use different interchangeable lenses to create distinctive visual effects.
* When the PENTAX K-x’s AV output terminal is used, movie clips are output at normal resolution. The data must be transferred to a PC for the playback of movie clips at high-definition TV proportions (1280 x 720 pixels).

5. PENTAX-original SR mechanism for sharp, blur-free images

The K-x features the PENTAX-developed SR (Shake Reduction) mechanism, which effectively compensates the adverse effect of camera shake by as much as approximately four shutter steps. This innovative mechanism extends its benefits to almost all PENTAX interchangeable lenses — even those designed for film-format cameras.** Thanks to this mechanism, the K-x produces sharp, blur-free images even under demanding conditions prone to camera shake, such as when using a telephoto lens, shooting in the dark without a flash illumination, and taking pictures of sunset scenes.

Type		TTL autofocus, auto-exposure digital SLR digital-still camera with built-in retractable P-TTL auto pop-up flash
Effective Pixels		approx. 12.4 megapixels
Image Sensor	Total pixels	approx. 12.9 megapixels
	Type	CMOS with a primary color filter
	Size	23.6mm x 15.8mm
Recorded Pixels	Still Picture	JPEG: [12M] 4288x2848 pixels, [10M] 3936x2624 pixels, [6M] 3072x2048 pixels, [2M] 1728x1152 pixels RAW: [12M] 4288x2848 pixels
	Movie	[0.9M] 1280x720, 16:9, [0.3M] 640x416, 3:2
Sensitivity ( Standard output sensitivity )		Auto, Manual: 200-6400 (1EV steps or 1/2EV steps or 1/3EV steps) Bulb mode: up to ISO1600, Could be expanded to ISO 100-12800
Recording Format	Still Picture	RAW (Original/DNG), JPEG (Conforms to Exif 2.21), Conforms to DCF (Design rule of Camera File system) 2.0
	Movie	Motion JPEG (AVI) 24FPS
Image Formats		JPEG - Baseline (: Best, : Better, : Good) RAW (12bit) (PEF, DNG ) RAW+JPEG: available
Storage Media		SD memory card , SDHC memory card
White Balance		Auto, Daylight, Shade, Cloudy, Tungsten Light, Fluorescent Light (W, D, N, L (Light Bulb) ), Flash, CTE, Manual setting, with WB fine adjustment
Viewfinder	Type	Fixed molded penta-mirror type
	Focusing screen	Natural-Bright-Matte II focusing screen
	Field of view	approx. 96%
	Magnification	approx. 0.85X (with 50mm F1.4 lens, infinity, -1m-1)
	Diopter adjustment	approx. -2.5 - +1.5m-1
Live View	Type	TTL by Image sensor
	Display	Enlargement (2X, 4X, 6X in case of AF mode, 2X, 4X, 6X, 8X, 10X in case of MF mode), Grid pattern, white/black out warning display, Histogram display
	Autofocus Mode	Contrast detection + Face detection / Contrast detection / Phase difference detection
Monitor	Type	TFT color LCD monitor, Brightness adjustable, Wide angle view
	Size	2.7 inch
	Dots	approx. 230,000 dots
Preview Method		Optical/Digital preview *This function can be allocated to green button through Menu.
Playback		Single frame, 4-image display, 9-image display, 16-image display, 36-image display, Zoom display (up to 16 times, scrolling possible), Image comparison, Rotating, Folder, Calendar, Slideshow, Histogram, Bright/Dark area, Resize, Trimming, Index
Digital Filter		Rec. mode: Toy camera, High contrast, Soft, Star burst, Retro, Extract color, Fish eye, Custom Playback: Toy camera, High contrast, Soft, Star burst, Retro, Extract color, Illustration(Pastel, Water color), Fish Eye, HDR, B&W, Sepia, Color, Slim, Miniature, Brightness, Base Tweaking, Custom
Focusing System	Type	TTL phase difference detection, 11-point wide autofocus system (SAFOX VIII)
	Focus Mode	AF.A(auto), AF.S(single, with focus lock), AF-C(continuous)*, Manual focus * Auto Picture and Picture mode: only when the Action mode is selected. * Scene mode: only when the Kids, Pet, Stage lighting and Night snap mode are selected. * P/Sv/Tv/Av/M/B: AF.A, AF.S or AF.C selectable
	Focus Point	5-point auto, 11-point auto, AF point select, Center
	AF assist lamp	avaiable (by Built-in Flash)
Exposure Control	Metering System	TTL open-aperture 16-segment metering (coupled with lens and AF information)
	Metering Mode	(1) Multi-segment metering (2) Center-weighted metering (3) Spot metering
	Exposure Range	EV1-21.5 (Standard Output Sensitivity 200 50mmF1.4)
	Modes	(1) Auto Picture mode (2) Picture mode (3) Scene mode (4) Program AE (5) Sensitivity-Priority AE (6) Shutter-Priority AE (7) Aperture-Priority AE (8) Metered Manual (9) Bulb Picture mode: Portrait, Landscape, Macro, Action, Night scene portrait, Standard Flash-Off Scene mode: Night Scene, Surf & Snow, Food, Sunset, Kids, Pet, Candlelight, Museum, Stage lighting*, Night snap* *The image is fixed to only JPEG.
	Exposure Compensation	±3EV (0.5EV steps or 0.3EV steps)
	Auto-bracketing	3 frames within range of ±0.5EV, ±1.0EV, ±1.5EV (0.5EV steps) or ±0.3EV, ±0.7EV, ±1.0EV (0.3EV steps)
	AE Lock	This function can be allocated to AF button in Menu.
Shutter	Shutter Type	Electronically controlled vertical-run focal plane shutter
	Shutter Speed	Auto: 1/6000 - 30 sec. and bulb, Manual: 1/6000 - 30 sec., and bulb
Drive Modes	Continuous shooting	Single-frame , Continuous (Hi, Lo), Self-timer (12s, 2s), Remote control (0s, 3s), Auto bracket approx. 4.7 fps, sequence: 17 frame (JPEG and Continuous (Hi)) 5 frame (RAW) approx. 2 fps , sequence: until the memory card becomes full (JPEG and Continuous (Lo)) 11 frame (RAW)
Built-in flash	Type	Built-in retractable P-TTL pop-up flash
	Guide number	approx. 16 (Standard Output Sensitivity 200/m) 12 (Standard Output Sensitivity 100/m)
	Angle of view coverage	28mm wide-angle (equivalent to 35mm)
	Flash Exposure Compensation	-2 EV - +1EV (1/2EV steps)
Flash Synchronization		Hot shoe, sync-speed: 1/180 sec., P-TTL, high-speed-sync, wireless-sync with PENTAX dedicated flash
Image Stabilizer	Type	Image sensor shift mechanism, Max 4 steps
Dust Removal	Type	Image sensor moving mechanism and SP Coating
Time	World Time	75 cities (28 time zones)
Data Folder	Folder Name	Date (100_MMDD•••), PENTX (100PENTX, 101PENTX•••)
Power Sources		Four AA (lithium, alkaline, and rechargeable Ni-MH) batteries Optional AC adapter also available.
Battery Life	Number of recordable images (Lithium)	approx. 1900 (Normal Recording)*2 , 1100 (50% use Flash)*1
	Playback time	approx. 680 minutes*2
	Number of recordable images (Ni-MH 1900mAh)	approx. 640 (Normal Recording)*2 , 420 (50% use Flash)*1
	Playback time	approx. 390 minutes*2
	Number of recordable images (Alkaline)	approx. 210 (Normal Recording)*2 , 130 (50% use Flash)*1
	Playback time	approx. 350 minutes*2
Interfaces		USB/Video USB 2.0 (HI-SPEED)
Video Output		Compatible with NTSC and PAL formats
Lens Mount		PENTAX KAF2 bayonet mount
Usable Lens		PENTAX KAF3-, KAF2-, KAF-, and KA-mount lenses. * Power zoom function is not available. K-mount lenses usable with restrictions. S-mount lenses, 67/645 lenses usable with adapter and with restrictions.
Dimensions		approx. 122.5(W) x 91.5(H) x 67.5(D)mm (4.8 x 3.6 x 2.7 inches)
Weight		approx. 515g (18.2 oz.) without battery and SD memory card approx. 580g (20.5 oz.) loaded and ready with lithium battery and SD memory card approx. 615g (21.7 oz.) loaded and ready with alkaline battery and SD memory card
Included accessories		USB cable I-USB7 , Strap O-ST53 , AA lithium battey 4pcs. , CD-ROM S-SW99 Eyecup FQ , Hot shoe cover FK, Body mount cover
Bundle software		PENTAX Digital Camera Utility 4.0

*1 Recording capacity shows approximate number of shots recorded during CIPA-compliant testing. Actual performance may vary depending on operating conditions.
*2 According to the result of PENTAX in-house testing.

[ Storage capacity ]

Still		128MB	256MB	512MB	1GB	2GB	4GB	6GB	8GB	12GB	16GB	32GB
RAW 4288 × 2848	PEF	6	12	24	48	98	194	295	394	595	794	1593
RAW 4288 × 2848	DNG	6	12	24	48	98	192	293	392	591	789	1583
JPEG 4288 × 2848		17	35	69	138	281	553	841	1126	1699	2266	4547
		31	61	122	244	495	973	1479	1980	2987	3985	7994
		61	120	239	479	975	1915	2912	3898	5880	7844	15735
JPEG 3936 × 2624		21	41	81	163	332	652	991	1327	2002	2671	5358
		37	72	144	289	585	1149	1747	2339	3528	4706	9441
		73	142	282	564	1138	2234	3398	4548	6860	9151	18358
JPEG 3072 × 2048		34	67	133	267	543	1068	1623	2173	3278	4373	8772
		60	118	234	468	945	1856	2823	3778	5699	7602	15251
		116	227	450	902	1807	3549	5397	7224	10896	14535	29157
JPEG 1728 × 1152		104	203	402	805	1617	3176	4829	6463	9749	13005	26088
		177	346	686	1373	2793	5485	8341	11164	16840	22463	45061
		325	634	1258	2518	5121	10057	15292	20468	30873	41182	82612

Movie		128MB	256MB	512MB	1GB	2GB	4GB	6GB	8GB	12GB	16GB	32GB
0.9M (1280 × 720, 16:9)		00:00'22"	00:00'44"	00:01'28"	00:02'56"	00:05'49"	00:11'45"	00:17'53"	00:23'56"	00:36'06"	00:48'10"	01:36'37"
		00:00'32"	00:01'02"	00:02'04"	00:04'08"	00:08'23"	00:16'29"	00:25'04"	00:33'33"	00:50'36"	01:07'30"	02:15'25"
		00:00'45"	00:01'28"	00:02'54"	00:05'49"	00:11'46"	00:23'07"	00:35'09"	00:47'03"	01:10'58"	01:34'40"	03:09'54"
0.3M (640 × 416, 3:2)		00:01'16"	00:02'29"	00:04'56"	00:09'52"	00:20'05"	00:39'26"	00:59'58"	01:20'16"	02:01'04"	02:41'30"	05:23'58"
		00:01'47"	00:03'28"	00:06'53"	00:13'47"	00:27'41"	00:54'21"	01:22'39"	01:50'38"	02:46'52"	03:42'36"	07:26'33"
		00:02'27"	00:04'47"	00:09'29"	00:19'00"	00:37'56"	01:14'29"	01:53'16"	02:31'36"	03:48'41"	05:05'03"	10:11'56"

The maximum file size is 4GB for movie.
The maximum length is 25 minutes for movie.

• PENTAX,K-x and smc PENTAX are trademarks of HOYA CORPORATION.
• PENTAX Digital Camera Utility and SDM are trademarks of HOYA CORPORATION..
• All other brands or product names are trademarks or registered trademarks of their respective companies
• Designs and specifications are subjects to change without notice