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Press Release

May 21, 2009

A Mid-Class Digital SLR Camera,
Aimed at Realizing the Essence of SLR Photography and
Equipped with Sophisticated Features for Top-Quality Digital Photography


HOYA CORPORATION PENTAX Products is pleased to announce the launch of the PENTAX K-7 lens-interchangeable digital SLR camera. Despite its compact, lightweight body, this new model brings together a wide array of advanced functions and user-friendly features with outstanding reliability and operability. This makes it possible to enjoy high-quality digital SLR photography with great ease.

The K-7 has been developed as a high-end model of the PENTAX K digital SLR camera series. True to its series concept, it was designed not only to assure outstanding image quality, but also to provide exceptional ease and comfort of operation and the utmost satisfaction to photo enthusiasts of all levels, including advanced amateurs. After making a thorough review of all essential digital SLR camera components and functions, PENTAX has revised and upgraded many of them, including viewfinder, shutter unit, continuous-shooting capacity, and exposure and autofocus systems. Protected by a durable, high-quality metallic body, but the K-7 is designed to be extremely compact and functional — just like all other K-series models — for enhanced portability and maneuverability. In addition, it has added several user-friendly features, including video recording, high dynamic range (HDR), and automatic horizon correction. All of these make the K-7 a tremendous photographic tool, perfect for all discerning digital SLR photographers.

♦ PENTAX K-7 [ ⇒ Product Image]
♦ Battery Grip D-BG4 [ ⇒ Product Image]
Major Features
  1. Durable and functional body, smaller than any other in its class

    The K-7 is built exceptional solid and durable, as its chassis is made of high-rigidity stainless-steel alloy and its housing is made of durable but lightweight magnesium-steel alloy. Thanks to 77 special seals applied to the body, it also features a dustproof, weather- and cold-resistant construction, assuring reliable operation even under harsh conditions and at a temperature as low as -10°C. It also features a newly designed shutter unit providing a top shutter speed of 1/8000 second and the outstanding durability to withstand 100,000 shutter releases. Despite all these features, the K-7 is one of the most compact and functional mid-class models in the market, because PENTAX applied all the experience and expertise in camera downsizing the company has developed from the earliest days of film-format SLR cameras.
  2. Optical viewfinder showing nearly 100% field of view

    The K-7’s glass prism finder offers an approximately 100% field of view and an approximately 92% magnification to facilitate focusing and framing operations. It also features a new Natural-Bright-Matte III focusing screen to improve focusing accuracy during manual-focus operation.
  3. High-speed continuous shooting at approx. 5.2 images per second

    The K-7’s high-speed continuous shooting mode captures as many as 40 images (in JPEG recording format) at a maximum speed of approximately 5.2 images per second, allowing the photographer to follow the movement of an active subject or preserve a sequence of the subject’s expressions.
  4. New DR II mechanism to minimize dust spots

    The K-7 comes equipped with the newly developed DR (Dust Removal) II mechanism, designed to effectively minimize annoying dust spots on recorded images, even after changing lenses in dust-prone outdoor settings. By shifting the low-pass filter located in front of the CMOS image sensor at supersonic speed using a piezoelectric element, it shakes the dust off the low-pass filter as effectively and efficiently as any other dust removal device. The K-7’s unique dust-alert system also lets the user check for dust adhering to the low-pass filter prior to actual shooting.
  5. High-quality image reproduction

    1. Approximately 14.6 effective megapixels for true-to-life image reproduction
      The K-7 incorporates a newly developed CMOS image sensor measuring 23.4mm by 15.6mm and featuring a high-speed, four-channel image data readout. With approximately 14.6 effective megapixels, this image sensor can faithfully and accurately reproduce fine-detailed, gradation-rich images. With the adverse effects of digital noise greatly reduced, the sensitivity can be increased from ISO 100 up to the highest level of ISO 6400 (via a custom function) without worry.
    2. High-performance, high-speed PRIME II imaging engine
      The K-7 features the newly developed PRIME (PENTAX Real Image Engine) II, an upgrade of the original PRIME, as its imaging engine. This new imaging engine offers greater data-processing speed and produces better-quality images with richer gradation and more accurate color rendition. It also offers high-speed movie data transmission.
  6. New 77-segment multi-pattern metering

    Newly developed for the K-7, a sophisticated 77-segment multi-pattern metering system greatly improves light-metering accuracy. By accurately analyzing various types of data (such as the image’s composition and format between upright and horizontal, and the subject’s distance and magnification) transmitted from the sensors in the camera body, this system greatly improves the accuracy of exposure control.
  7. New-generation SR mechanism for improved shake-reduction effect

    The K-7 features the PENTAX-developed SR (Shake Reduction) mechanism, which effectively compensates the adverse effect of camera shake by approximately 2.5 to four shutter steps, assuring sharp, blur-free images even under demanding shooting conditions. This innovative mechanism is compatible with all PENTAX interchangeable lenses — even most of the lenses designed for film-format cameras.* Since this new-generation version can freely shift the image-sensor unit to keep it level regardless of the camera’s inclination, it also provides such user-friendly new functions as automatic level adjustment and minute angle adjustment (in the direction of up/down, right/left and clockwise/counterclockwise), helping to compose the image exactly the way the photographer wants.

    * Lenses compatible with this mechanism are the PENTAX K-, KA-, KAF-, KAF2- and KAF3-mount lenses; screw-mounted lenses (with an adapter); and 645- and 67-system lenses (with an adapter). Some functions may not be available with certain lenses.

  8. Live View real-time, on-display image confirmation with Face Recognition AF and high-speed continuous shooting modes

    The K-7 features the Live View function, which allows the user to view the image on the LCD monitor during shooting. You can take advantage of this convenient function not only in the Contrast AF mode, which optimizes the focus based on the subject’s contrast, but also in the Face Recognition AF mode, which automatically and accurately focuses on the subject’s face. Thanks to the newly developed diaphragm-control mechanism, the Live View function can also be used in the continuous shooting mode with the mirror at lock-up position.
  9. High-quality still image recording at 1280 x 720 pixels; 30-frames-per-second movie recording at HD-television proportions

    The K-7 adds a new movie recording function, extending the benefits of SLR photography to the world of movie shooting: For instance, reduce the depth of field to make the subject stand out, or use different lenses to create distinctive visual effects. Beautiful movie clips can recorded at different sizes — 640 x 416 pixels, 1536 x 1024 pixels, or 1280 x 720 pixels (16:9 high-definition TV proportions) — at a frame rate of 30 frames per second. The K-7 is also equipped with an HDMI terminal and an external microphone input terminal.
  10. New 11-point wide-frame AF sensor

    The K-7’s new SAFOX VIII+ wide-frame autofocus system features 11 sensor points (with nine cross-type sensors positioned in the middle). By adding a light source type to its data range, and driven by a greatly improved algorithm, this AF system assures reliable, responsive autofocus operation superior in speed and accuracy to the previous system. The K-7 also incorporates an AF-assisting spotbeam projector in its built-in flash unit to improve autofocusing accuracy in the dark.
  11. Custom Image function to easily create desired visual effects

    The K-7’s Custom Image function lets the user control the image’s finishing touch to capture their photographic intention, or reproduce the ambience of the scene. With the K-7, the user can select one of seven modes, including the new “Muted” mode designed to recreate an image with delicate, subdued colors. In addition to saturation, tone, contrast and sharpness — the factors previously available — it is now possible to adjust “key” and “contrast highlight/shadow” to the desired levels. The effects of these factors can be effortlessly confirmed on a preview image using the Digital Preview or Live View function before finalizing the settings.
  12. Versatile exposure system for faithful reproduction of creative intentions

    1. Hyper Program function
      The K-7's Hyper Program function allows the user to instantly switch to the Shutter- or Aperture-Priority AE mode from the Programmed AE mode, with a simple turn of the electronic dials on the grip. To return to the Programmed AE mode, simply press the green button positioned next to the shutter release button.
    2. Hyper Manual function
      When shooting in Manual mode, a single push of the green button allows the user to instantly set the proper exposure for the subject.
    3. Sensitivity-Priority mode
      The K-7 features a unique Sensitivity-Priority (Sv) mode, which is designed to automatically select the optimum combination of aperture and shutter speed for a user-selected sensitivity. The sensitivity can be shifted instantly in 1/2 or 1/3 steps by turning the electronic dial on the back panel.
    4. Shutter/Aperture-Priority mode
      Taking full advantage of the unique capability of digital cameras permitting automatic shift of sensitivity at any time, the Shutter/Aperture-Priority (TAv) mode automatically selects the most appropriate sensitivity for a user-selected shutter-speed/aperture combination. It allows the user to experiment with a greater range of photographic expressions with great ease.
  13. Large, easy-to-see 3.0-inch wide-view LCD monitor with approximately 921,000 dots

    The K-7 features a large 3.0-inch color LCD monitor with approximately 921,000 dots on its back panel. Its wide-view design allows the photographer to check the monitor image from approximately 170 degrees both vertically and horizontally, facilitating low- and high-angle shooting using the Live View function.
  14. Powerful rechargeable battery

    The K-7 is powered by a large-capacity, rechargeable lithium-ion battery, which can capture approximately 980 images** when fully charged.

    ** Under testing conditions prescribed by PENTAX, when using a rechargeable D-LI90 lithium-ion battery with no flash.

  15. Other features

    1. HDR (high dynamic range) function to create one composite image with an extra-wide gradation range from three images with different exposures
    2. Dynamic-range expansion function to compensate for both white-washed (overexposed) and blacked-out (underexposed) areas
    3. Digital level function for easy checking of the image’s levels
    4. Automatic compensation of distortion and lateral chromatic aberration (available only with DA- and DFA-series lenses)
    5. White balance control, featuring a new CTE mode to emphasize the color components of sunset scenes and a new incandescent-tinted fluorescent light mode
    6. Multi-exposure function, with a superimposition of already-recorded images on the LCD monitor for at-a-glance comparison
    7. Attachment of copyright credits on recorded images
    8. RAW button for single-action switching of image file format
    9. 16 digital filters to add a range of visual effects; a new function to record an overwritten history also available
    10. Color-specific control buttons/dials for easy recognition and quick access, based on the universal color design
    11. PENTAX Digital Camera Utility 4 software package, including a RAW-data processing application (based on the popular SILKYPIX RAW-data processing engine developed by Ichikawa Soft Laboratory) and a browser application

Optional accessory: Battery Grip D-BG4

  • Exclusively designed for the PENTAX K-7 camera body, the Battery Grip D-BG4 is powered by either a rechargeable lithium-ion battery or six AA-size batteries. Since it supplements the camera's battery as an additional power source, the number of recordable images is greatly increased. To facilitate vertical-position shooting, this grip features extra shutter-release button, preview lever, electronic dials, AE-lock button, Green button and AF button. It also provides the same dustproof, weather- and cold-resistant construction as the camera body itself.
Effective Pixels approx. 14.6 megapixels
Image Sensor Total pixels approx. 15.07 megapixels
Type CMOS with a primary color filter
Size 23.4mm x 15.6mm
Color Depth 8 bit (JPEG) or 12 bit (RAW)
Recorded Pixels Still JPEG: [14M] 4672x3104 pixels, [10M] 3936x2624 pixels, [6M] 3072x2048 pixels, [2M] 1728x1152 pixels
RAW: [14M] 4672x3104 pixels
Movie [0.9M] (1280x720, 16:9), [1.6M] (1536x1024, 3:2), [0.3M] (640x416, 3:2)
Sensitivity (Standard Output Sensitivity) Auto, Manual : 100-3200 (1EV steps or 1/2EV steps or 1/3EV steps) can be expand to ISO6400
Bulb mode : up to ISO1600
Recording file Format Still RAW (Original/DNG), JPEG (Conforms to Exif 2.21), Conforms to DCF (Design rule of Camera File system) 2.0
Movie Motion JPEG (AVI) 30fps
Formats Still Compressed: JPEG - Baseline (starstarstarstar: Premium , starstarstar: Best , starstar: Better, star: Good)
Compressed: RAW (PEF)
Non compressed: RAW (DNG)
Storage Media SD, SDHC memory card
RAW+JPEG : available
White Balance Auto, Daylight, Shade, Cloudy, Fluorescent Light ( D, N, W, L), Tungsten Light, Flash, CTE, Manual setting , with WB fine adjustment
Viewfinder Type Pentaprism type
Focusing screen Natural-Bright-Matte III focusing screen
Field of view approx. 100%
Magnification approx. 0.92x (with 50mm F1.4 lens, infinity, -1m-1)
Diopter adjustment approx. -2.5 - +1.5m-1
Live View Type TTL by Image sensor
Field of view approx. 100%
Display Enlargement (2X, 4X, 6X in case of AF mode, 2X, 4X, 6X, 8X, 10X in case of MF mode) Grid pattern
Autofocus Mode Contrast detection + Face detection / Contrast detection / Phase difference detection
LCD Monitor Type TFT color LCD monitor, brightness adjustable, Color adjustable, Wide angle view, AR Coating
Size 3.0 inch
Dots approx. 921,000 dots
Preview Method Optical preview , Digital preview
Playback One Image, Two Images, Index (4 or 9 or 16 or 32 or 81 thumb nails), Enlargement (up to 32X, scroll available), Image Rotation, Folder view, Slideshow, Histogram, Resize, Cropping, Bright/Dark area, Calendar view, Index view
Digital Filter Recording Mode Toy Camera, Retro, High Contrast, Extract Color, Soft, Star Burst, Fish-eye, Custom
Playback Mode Toy Camera, Monochrome, Retro, Color, High Contrast, Soft, Extract Color, Star Burst, Water Color, Fish-eye, Pastel, Slim, Miniature, HDR, Base Tweaking, Custom
Focusing System Type TTL phase difference detection, 11-point wide autofocus system (SAFOX VIII+)
Focus Mode AF-single (with focus lock); Manual focus
Focus Point Auto, Select, Center
AF assist lamp available
Exposure Control Metering System TTL open-aperture 77-segment metering (coupled with lens and AF information)
Metering Mode (1) Multi-segment metering, (2) Center-weighted metering, (3) Spot metering
Exposure Range EV 0-22 (at Standard Output Sensitivity 100 with 50mm F1.4 lens)
Modes (1) Green, (2) Program AE, (3) Sensitivity-Priority AE, (4) Shutter-Priority AE, (5) Aperture-Priority AE, (6) Shutter and Aperture Priority AE, (7) Metered Manual, (8) Bulb, (9) X speed
Exposure Compensation ±5 EV
Auto-bracketing 3 or 5 frames within range of ±0.5EV, ±1.0EV, ±1.5EV, ±2.0EV (0.5EV steps) or ±0.3EV, ±0.7EV, ±1.0EV, ±1.3EV, ±1.7EV, ±2.0EV (0.3EV steps)
AE Lock availiable
Shutter Shutter Type Electronically controlled vertical-run focal plane shutter
Shutter Speed 1/8000 - 30 sec. and bulb
Drive Modes   Single-frame, Continuous (Hi, Lo), Self-timer (12s, 2s), Remote control (0s, 3s), Remote Continuous Shooting, Exposure Bracketing, Exposure Bracketing+Self-timer, Mirror Lock-up Shooting, Mirror Lock-up Shooting+Remote control
Continuous shooting approx. 5.2 fps, sequence : until approx. 40 frames (JPEG and continuous (Hi)), approx. 15 frames (RAW(PEF)) , approx. 14 frames (RAW(DNG)), approx. 3.3 fps, sequence : until the memory card becomes full (JPEG and continuous (Lo)) , approx. 17 frames (RAW(PEF)) , approx. 17 frames (RAW(DNG))
Built-in flash Type Built-in retractable P-TTL pop-up flash
Guide number approx. 13 (Standard Output Sensitivity 100/m)
Angle of view coverage 28mm wide-angle (equivalent to 35mm)
Flash Exposure
-2 EV - +1EV (1/2EV steps)
Flash Synchronization Hot shoe, X-sync socket, 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 stops
Dust Removal Image sensor cleaning function by supersonic vibration
Time World Time 75 cities (28 time zones)
Data Folder Folder Name Date (100_MMDD•••), PENTX (100PENTX, 101PENTX•••) ,
File Name Standard, User customize
Power Sources Rechargeable D-LI90 lithium-ion battery
Optional AC adapter also available.
Battery Life Number of
recordable images
approx. 980 (Normal Recording)*2 , approx. 740 (50% use Flash)*1
Playback time approx. 440 minutes*2
Interfaces USB2.0(Hi-Speed)/AV output, DC input , Cable switch, X-sync socket, HDMI output, Streo microphone
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 available. K-mount lenses usable with restrictions. S-mount lenses, 67/645 lenses usable with adapter and with restrictions.

Dimensions approx. 130.5(W) x 96.5(H) x 72.5(D)mm (5.1 x 3.8 x 2.9 inches)
Weight approx. 670g (22.9 oz.) without battery and SD memory card.
approx. 750g (26.5 oz.) loaded and ready with battery and SD memory card

*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 8GB
RAW 4672 × 3104 PEF 5 10 20 40 82 162 331
RAW 4672 × 3104 DNG 5 10 20 40 82 161 329
4672 × 3104
starstarstarstar 9 18 36 73 148 292 594
starstarstar 15 29 58 117 238 467 952
starstar 26 52 103 206 420 826 1682
star 52 102 204 408 830 1630 3319
3936 × 2624
starstarstarstar 13 25 51 102 208 409 832
starstarstar 21 41 81 163 332 652 1327
starstar 37 72 144 289 585 1149 2339
star 73 142 282 564 1138 2234 4548
3072 × 2048
starstarstarstar 21 42 83 167 339 666 1356
starstarstar 34 67 133 267 543 1068 2173
starstar 60 118 234 468 945 1856 3778
star 116 227 450 902 1807 3549 7224
1728 × 1152
starstarstarstar 66 130 258 516 1041 2045 4162
starstarstar 104 203 402 805 1617 3176 6463
starstar 177 346 686 1373 2793 5485 11164
star 325 634 1258 2518 5121 10057 20468

Movie   128MB 256MB 512MB 1GB 2GB 4GB 8GB
1.6M (1536 × 1024, 3:2) starstarstar 0:14 0:28 0:55 1:51 3:45 7:23 15:03
starstar 0:20 0:39 1:18 2:36 5:16 10:22 21:06
star 0:28 0:55 1:50 3:40 7:28 14:40 29:52
0.9M (1280 × 720, 16:9) starstarstar 0:18 0:35 1:10 2:21 4:48 9:26 19:13
starstar 0:25 0:50 1:40 3:20 6:47 13:19 27:06
star 0:36 1:10 2:20 4:41 9:29 18:37 37:54
0.3M (640 × 416, 3:2) starstarstar 1:01 2:00 3:59 7:59 16:15 31:55 1:04:58
starstar 1:26 2:49 5:35 11:11 22:45 44:41 1:30:58
star 2:00 3:54 7:44 15:29 31:02 1:00:57 2:04:02

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

  • PENTAX, K-7, and PENTAX Digital Camera Utility are trademarks of HOYA CORPORATION.
  • HDMI, the HDMI Logo and High-Definition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing LLC.
  • All other brands or product names are trademarks or registered trademarks of their respective companies.
  • Designs and specifications are subjects to change without notice
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