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The PENTAX K-r ’s features range from high-quality image reproduction with 12.4 effective megapixels and HDTV-proportion movie recording, to high-speed continuous shooting at six images per second, super-high-sensitivity shooting at ISO 25600 (via a custom function) and a large, easy-to-view 3.0-inch high-resolution color LCD monitor. Its dual-power-source design offers a choice between the standard rechargeable lithium-ion battery and a set of AA-size batteries (via adaptor purchased separately) it also offers a greater selection of digital filters for effortless production of original, creative artwork. All combined, the K-r boosts outstanding performance and versatility, almost the equivalent of upper-class digital SLR cameras, while allowing the photographer to easily deal with different photographic requirements and to accommodate individual shooting styles. It is also compatible with the IrSimple™ high-speed infrared data transmission system, enabling for instance the wireless data transfer to one blog via a cellular phone or a swift image data exchange between two PENTAX K-r’s. Totally new capabilities in a digital SLR camera, these features make the K-r a unique, new-generation communications tool.
The K-r incorporates a new-generation CMOS image sensor with 12.4 effective megapixels to assure high-speed image data readout. It also features the high-performance PRIME (PENTAX Real Image Engine) II imaging engine to ensure accurate and high-speed data processing equal to that of upper-level models. As the result, the K-r produces high-quality images with fine detail, rich gradation and superb rendition, while suppressing annoying digital noise to a minimum. 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.
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 state-of-the-art, high-density packaging technologies that assure space-efficient positioning and layout of the camera components.
The 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 six images per second - the fastest of all entry-class models - allowing the photographer to preserve sharp, crisp images of fast-moving subjects with great ease.
The K-r's high-precision, wide-frame SAFOX IX autofocus system features 11 sensor points (with nine cross-type sensors positioned in the middle) to assure pinpoint focus on the subject. The K-r is also equipped with a spotbeam projector to assist the AF system 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 drastic upgrading of AF algorithms.
Thanks to the combination of PENTAX-original finder optics and the renowned Natural-Bright-Matte focusing screen, the K-r’s viewfinder offers a bright, clear subject image at 0.85 X magnifications and with a 96% field of view. Since it assures excellent visibility even in bright outdoor locations and provides delay-free, real-time display of the subject’s image, it is especially helpful in shooting where the timing of shutter release is critical, such as sports photography. The in-focus point is indicated as a red point in the viewfinder for at-a-glance confirmation.
The K-r features a large, high-resolution color LCD monitor with 921,000 dots. Its wide-view design assures a clear view of the monitor image from 170 degrees horizontally and vertically, making it particularly useful in low- and high-angle applications during Live View shooting.
In addition to the standard rechargeable lithium-ion battery, which allows the photographer to capture 560 images with a single recharge, the K-r can also be powered by four AA-size batteries using optional AA Battery Holder D-BH109. Since these world-standard batteries are available almost anywhere, it removes worries about unexpected battery shortage, especially on the road.
The K-r features the PENTAX-developed SR (Shake Reduction) mechanism, which effectively compensates the adverse effect of camera shake by up to 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 user-friendly mechanism, the K-r 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 flash illumination, and taking pictures of sunset scenes. Lenses compatible with this mechanism: 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.
The K-r’s digital filter function allows the user to process recorded images in a variety of creative ways and produce highly creative visual expressions - without the need of a computer. The user not only has a choice of 18 different filters, including the newly added Starburst and Sketch, but can also apply different filters one after another to a single image to create more inventive visual effects.
The K-r features the unique cross process mode, in which the camera automatically shifts photographic parameters for each exposure to create eye-catching images with unique, dramatic colours - just like pictures treated with the cross process* in film photography. 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.
* A film development technique that uses unconventional film development to create a distinctive finish with dramatic, stylised colours.
The K-r features the 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.
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 with great ease, users can effortlessly 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, and even let them engage in a simple match game using Exif data attached to the images such as aperture or shutter-speed values.
The K-r 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 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 assures a greater possibility of visual presentation in movies — either through the application of digital filters, such as Toy Camera and Retro, to add specific visual effects during shooting, or through the use of various movie-editing functions after shooting.