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Pentax K-r Digital SLR Camera

Pentax K-r SLR front with flash up


September 8th, 2010

Pentax has today announced the Pentax K-r digital SLR camera, featuring a lightweight compact body design, and combining user-friendly operation with a wide array of advanced features designed to enhance the fun and excitement of digital SLR photography.

The Pentax K-r digital SLR incorporates a 12.4 megapixel sensor, features an easy-to-view 3.0-inch high-resolution color LCD monitor, offers HDTV-proportion movie recording, provides continuous shooting capability at approximately six images per second, and high-sensitivity shooting up to ISO 25600 (via a custom function).

Developed to be an entry model targeted at digital SLR novices and family users, the Pentax K-r not only offers an assortment of features and functions that make it easy to capture images people expect of a digital SLR camera, but it also comes equipped with a host of handy tools that help user in creating more personalized, creative images.

Pentax K-r Digital SLR Major Features

12.4 Megapixel effective resolution: The K-r incorporates a new-generation CMOS image sensor with approximately 12.4 effective megapixels to assure high-speed image data readout.

The K-r also offers a wide sensitivity range between ISO 200 and ISO 12800; this range can be expanded from ISO 100 to ISO 25600 via a custom function.

Compact, lightweight body: Despite the incorporation of the large 23.6mm x 15.8mm image sensor, the K-r sports a compact, lightweight body, thanks to a trim, lightweight stainless-steel chassis, a downsized in-body shake reduction mechanism, and high-density packaging technologies that assure space-efficient positioning and layout of the camera components.

High-speed continuous shooting at approximately six images per second: The Pentax K-r’s high-speed continuous shooting mode records as many as 25 images (in JPEG recording format) in a single sequence at a maximum speed of approximately six images per second — the fastest of all entry-class models — allowing the photographer to capture images of fast-moving subjects with greater ease.

11-point AF system: The Pentax K-r digital SLR's wide-frame SAFOX IX autofocus system features 11 sensor points (with nine cross-type sensors positioned in the middle) to help assure proper focus on the subject. The K-r is also equipped with an AF assist beam to allow the camera to focus more efficiently in poorly lit locations. The accuracy and speed of contrast AF operation during Live View shooting has also been enhanced by the incorporation of a new-generation image sensor and an upgrading of AF algorithms.

Pentax K-r SLR camera top view

Optical viewfinder: the K-r’s viewfinder offers 0.85X magnification with a 96% field of view. The in-focus point is indicated as a red point in the viewfinder for at-a-glance confirmation.

Large 3.0-inch LCD monitor with wide viewing angle and approximately 921,000 dots: The Pentax K-r features a large, high-resolution color LCD monitor with approximately 921,000 dots. Its wide-view design provides a clear view of the monitor image from approximately 170 degrees horizontally and vertically.

Pentax-original Shake Reduction mechanism to provide blur-free images: The K-r features Pentax's SR (Shake Reduction) mechanism, which effectively compensates the adverse effect of camera shake by up to approximately four shutter steps. This mechanism extends its benefits to almost all Pentax interchangeable lenses — even those designed for film-format cameras. Some functions may not be available with certain lenses.

HDTV-proportion movie recording at 1280 x 720 pixels and at 25 frames per second: The K-r provides a movie-recording function, which captures movie clips in 16:9 high-definition TV proportions (1280 x 720 pixels) at a frame rate of 25 frames per second. This extends many benefits of high-quality SLR photography to the world of movie shooting: For instance, reduce the depth of field to make a subject stand out, or use different interchangeable lenses to create distinctive visual effects.

The K-r also offers a greater possibility of visual presentation in movies, either through the application of digital filters, or through the use of various movie-editing functions after shooting. When the Pentax K-r’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).

Versatile dual-power-source design: In addition to the standard rechargeable lithium-ion battery, which allows the photographer to capture approximately 560 images with a single recharge, the Pentax K-r can also be powered by four AA-size batteries using optional AA Battery Holder D-BH109.

Pentax K-r SLR with Li-Ion battery

Custom image function for distinctive finishing touches: The Pentax K-r features a custom image function, which allows the user to easily select a desired finishing touch for a particular image in order to more faithfully express his/her creative intention or emphasize the prevailing atmosphere. The K-r offers a choice of nine custom image modes including Bleach Bypass, which is designed to create a dramatic visual effect used in motion pictures.

Versatile digital filter function: The K-r’s digital filter function allows the user to process recorded images in a variety of creative ways without the need of a computer. The user not only has a choice of 18 different filters, including the newly added Starburst, Sketch and Posterization, but can also apply different filters one after another to a single image to create more inventive visual effects.

Cross process mode with three options: The K-r features a unique cross process mode, in which the camera automatically shifts photographic parameters for each exposure to create images with unique, dramatic colors. In addition to “Random”, where the results are unpredictable until the image has been processed, the user also has two other options: “Preset”, with three different sets of preset parameters; and “Favorite”, with user-input parameters.

Upgraded HDR (High Dynamic Range) function: The K-r features a HDR (high dynamic range) function to create one composite image with an extra-wide gradation range from three images with different exposures, without the need of a computer application. It offers a choice of auto, standard and expanded (at three levels) modes to accommodate different creative intentions. Thanks to the introduction of Auto Align function, the user can now take advantage of this creative tool even with handheld shooting.

Infrared data transmission system: The K-r is the first Pentax digital SLR camera equipped with the IrSimple™ high-speed infrared data transmission system. Since this system allows the user to transfer image data to IrSimple-compatible digital devices, users can post images taken with the K-r on their own blogs via a cellular phone. This system also makes the K-r a brand-new photo communication tool, as it also allows users to exchange their image data using a pair of K-r cameras.

Additional Pentax K-r SLR features:

  • DR (Dust Removal) mechanism, to shake dust off the CMOS image sensor.

  • User-friendly layout of essential control buttons and levers, all positioned on the camera’s grip side for quick, effortless access by the photographer’s right hand.

  • Auto Picture mode, for automatic selection of the most appropriate shooting mode, even during Live View shooting.

  • Eleven scene modes, including a new Night Scene HDR mode.

  • Versatile white balance control, featuring a new CTE mode designed to emphasize the dominant color components of the captured images which works best with such scenes as a sunset.

  • Automatic compensation of distortion and lateral chromatic aberration (available only with DA-,DFA- and FA Limited-series lenses).

  • Pentax Digital Camera Utility 4 software package supplied, with RAW-data processing and browser applications.

  • The Pentax K-r uses Secure Digital (SD) type memory cards for still and movie recording.

Pentax K-r SLR side view with SD card door open

Pentax K-r Digital SLR Camera Specifications
Effective Pixels
Approx. 12.4 megapixels
Image Sensor
Primary color filter, CMOS, Size: 23.6 x 15.8 (mm)
Lens Mount
PENTAX KAF2 bayonet mount (AF coupler, lens information contacts, K-mount with power contacts)
Compatible Lenses
KAF3-, KAF2- (power zoom not compatible), KAF-, KA- mount lens
Dust Removal
SP coating and CMOS sensor operations with the Dust Alert function.
(Standard Output)
AUTO/200 to 12800 (EV steps can be set to 1EV, 1/2EV, or 1/3EV), expandable from ISO 100 to ISO 25600. Up to ISO 1600 in Bulb mode.
Image Stabilizer Type / Construction
CMOS image sensor shift. Up to 4EV (depending on the used lens type and shooting conditions)
File format
RAW (PEF/DNG), JPEG (Exif 2.21), DCF2.0 compliant
Recorded Pixel
JPEG: 12M (4288x2848 pixels), 10M (3936x2624 pixels), 6M (3072x2048 pixels), 2M (1728x1152 pixels)
RAW: 12M (4288x2848 pixels)
Quality Level
RAW (12bit): PEF, DNG JPEG: (Best), (Better), (Good), RAW+JPEG simultaneous capturing compatible.
Color Space
sRGB, AdobeRGB
Storage Medium
SD/SDHC Memory Card
View finder Type
Penta-mirror viewfinder
View finder Coverage (FOV)
Approx. 96%
View finder Magnification
Approx. 0.85x (50mm F1.4 at infinity)
View finder Eye-Relief Length
Approx. 19.1mm (from the view window), Approx. 21.6mm (from the center of lens)
Diopter Adjustment
Approx. -2.5m to +1.5m-1
Focusing Screen
Natural-Bright-Matte II focusing screen
Live View Type
TTL method using CMOS image sensor
Live View Focusing Mechanism
Contrast detection + Face detection / Contrast detection / Phase matching
Live View Display
Field of View approx. 100%, Magnified view (AF mode: 2x, 4x, 6x / MF mode:2x, 4x, 6x, 8x, 10x ), Grid display (16 segmentation, Golden Section, Scale display), bright/dark area warning, histogram
LCD Monitor Type
Wide viewing angle TFT color LCD
LCD Monitor Size
3.0 inch
LCD Monitor Dots
Approx. 921,000 dots
LCD Monitor Adjustment
Brightness and colors adjustable
Preview Type
Optical preview and digital preview (Can be assigned to green button from the menu)
White Balance Auto
TTL method using CMOS image sensor
White Balance Preset
Daylight, Shade, Cloudy, Fluorescent Light (D: Daylight Color, N: Daylight White, W: Cool White, L: Warm White), Tungsten Light, Flash, CTE, Manual
White Balance Manual
Configuration using the display screen
White Balance Fine Adjustment
Adjustable ±7steps on A-B axis or G-M axis
Autofocus System Type
TTL: phase-matching autofocus
Autofocus System Focus Sensor
SAFOX IX, 11 point (9 cross type focus point in the center)
Autofocus System Brightness Range
EV-1 to 18 (ISO 100)
AF mode
Auto AF (AF.A), Single AF (AF.S), Continuous AF (AF.C).
Focus priority or shutter priority mode for AF.S.
Focus priority or FPS priority mode for AF.C.
AF Point Selection
5 point auto, 11 point auto, Select, Center
AF Assist
Dedicated LED AF assist lamp
Metering Type
TTL open aperture, 16 segmented metering, center-weighted and spot metering available
Exposure Compensation
EV1 to 21.5 (ISO200 at 50mmF1.4)
Exposure Mode
Auto Picture Mode, Picture mode (Portrait, Landscape, Macro, Moving Object, Night Scene Portrait, Flash Off) Scene Mode (Night Scene, Surf & Snow, Food, Sunset, Kids, Pet, Candlelight, Museum, Stage Lighting, Night Snap, Night Scene HDR)
* In Stage Lighting, Night Snap, and Night Scene HDR, the file format is fixed to JPEG. Program, Sensitivity Priority, Shutter Priority, Aperture Priority, Manual, Bulb
EV Compensation
±3EV (1/2EV step or 1/3EV can be selected)
AE Lock
Can be assigned to AF/AE-L button from the menu
(Timer method: two times the meter operating time set in the custom function setting), Continuous as long as the shutter release button is pressed halfway.
Shutter Type
Electronically controlled, vertical run, focal plane shutter
Shutter Speed
Auto: 1/6000 to 30 sec., Manual: 1/6000 to 30 sec. (1/3EV step or 1/2EV step), Bulb
Drive modes Mode Selection
Single frame, Continuous (Hi, Lo), Self-timer (12s, 2s), Remote Control (immediately, 3 sec.), Bracketing (3 frames)
Continuous Shooting
Approx. 6 fps, JPEG (12M: at Continuous Hi): up to 25 frames, RAW: up to 12 frames Approx. 2 fps, JPEG (12M: at Continuous Lo): until SD Memory Card is full, RAW: up to 36 frames
Built-in Flash Type
Built-in P-TTL flash with serial control,
GN: approx. 16 (ISO200/m), approx. 12 (ISO100/m)
Angle of view: equivalent to angle of view of 28mm lens (35mm format equivalent)
Flash Mode
P-TTL, Red-eye Reduction, Slow-speed Sync, Trailing Curtain Sync High-Speed Sync and Wireless Sync are also available with PENTAX dedicated external flash.
Sync Speed Range
1/180 sec.
Flash Exposure
-2.0EV to +1.0EV
Capture Function Custom Image
Bright, Natural, Portrait, Landscape, Vibrant, Muted, Monochrome, Reversal Film, Bleach Bypass
Noise Reduction
Slow Shutter Speed NR, High-ISO NR
Dynamic Range Setting
Highlight Correction, Shadow Correction
Lens Correction
Distortion Correction, Lateral Chromatic Aberration Correction
Cross Processing
Random, Preset 1-3, Favorite 1-3.
Digital Filter
Toy Camera, Retro, High-Contrast, Extract Color, Soft, Starburst, Fish-eye, Custom
HDR Capture
Auto, Standard, Strong1, Strong2, Strong3, Automatic composition correction function
Select the number of shots between 2 and 9. Auto EV adjustment available.
Interval Shooting
Capture Interval setting (1 sec. to 24 hours), Start Interval setting (Immediate, Designated time), Captures up to 999 images
Movie File Format
Motion JPEG (AVI)
Movie Size
HD (1280x720, 16:9, 25fps), VGA (640x480, 4:3, 25fps)
Quality Level
(Best), (Better), (Good)
Movie Sound
Built-in monaural microphone
Movie Recording Time
Up to 25 minutes. Automatically stops recording when internal temperature rises more than designated
Movie Custom Setting
Bright, Natural, Portrait, Landscape, Vibrant, Muted, Monochrome, Reversal Film, Bleach Bypass
Cross Processing
Random, Preset 1-3, Favorite 1-3.
Digital Filter
Toy Camera, Retro, High-Contrast, Extract Color, Color
Playback view
Single frame, Image comparison, Multi-image display (4, 9, 16, 36, 81 segmentation), Display magnification (up to 16x, scrolling and quick magnification available), rotating, calendar display, folder display, slideshow, histogram, bright/dark area warning, resize, cropping, copyright display, detailed exif information display.
Delete single image, delete all, select & delete, delete folder, delete instant review image
Digital Filter
Toy Camera, Monochrome, Retro, Color, High Contrast, Soft, Extract Color, Starburst, Sketch Filter, Water Color, Fish-eye, Pastel, Slim, Miniature, HDR, Posterization, Base Parameter Adjustment, Custom Filter
RAW Development
File Format (JPEG), Custom Image, White Balance, Sensitivity, High-ISO NR, Shadow Correction, Distortion Correction, Lateral Chromatic Aberration Correction, Color Space
Resize, Cropping (Aspect ratio and Slant adjustment available), Index, Movie Edit (Divide or delete selected frames), Capturing a JPEG still picture from a movie
Custom Functions
22 items
Mode Memory
13 items
Custom Button
Green button (Green button, Custom Image, Optical preview, Digital preview, Digital Filter, Cross Processing, One Push File Format) AF/AE-L button (AF, AE-L)
Test Size
Standard, Large
World Time
World Time settings for 75 cities (28 time zones)
English, French, German, Spanish, Portuguese, Italian, Dutch, Danish, Swedish, Finnish, Polish, Czech, Hungarian, Turkish, Greek, Russian, Korean, Traditional Chinese, Simplified Chinese, Japanese
AF Fine Adjustment
±10 steps, Uniform Adjustment
Copyright Information
Names of "Photographer" and "Copyright Holder" are embedded to the image file. Revision history can be checked using the provided software.
Battery Type
Rechargeable Lithium-ion Battery D-LI109 With AA Battery Holder D-BH109 (optional), four AA batteries (Lithium, Ni-MH rechargeable, alkaline) can be used.
AC Adapter
AC Adapter Kit K-AC109 (optional)
Battery Life
<With D-LI109>
Number of recordable images:
approx. 470 images (with 50% flash usage), approx. 560 images (without flash usage)
Playback time:
approx. 300 minutes

<With AA lithium batteries>
Number of recordable images:
approx. 1000 images (with 50% flash usage), approx. 1600 images (without flash usage)
Playback time:
approx. 620 minutes
* Tested in compliance with CIPA standard. Actual results may vary depending on the shooting conditions/circumstances.
Connection Port
USB2.0 (high-speed compatible) / AV output terminal
USB Connection
Video Output Format
Infrared Connection
Infrared Connection in/out (IrSimple)
Approx. 125mm(w) x 97mm(H) x 68mm(L) (excluding protrusions)
Approx. 544g (body only), Approx. 598g (including dedicated battery and SD Memory Card), Approx. 625g (including AA Battery Holder, four AA lithium batteries, SD Memory Card)
Package Contents
USB Cable I-USB7, Strap O-ST53, Rechargeable Lithium-ion Battery D-LI109, Battery Charger D-BC109, Software (CD-ROM) S-SW110,
<Mounted on the camera> Eyecup FQ, Hot shoe cover FK, Body mount cover
PENTAX Digital Camera Utility 4

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