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Digital SLR Camera: K-5

A brand-new imaging system assures a top sensitivity of ISO 51200, for extra-fine images

Coupling a newly developed imaging system with the proven PRIME II imaging engine, the PENTAX K-5 offers a sensitivity range of ISO 100 to 12800, or ISO 80 to ISO 51200 when expanded with a custom function. This new imaging system integrates three core components — a CMOS imaging sensor with approximately 16.28 effective megapixels, a gain amplifier used to amplify image data signals, and a 14-bit A/D converter — on the same chip. By packaging the previously independent circuits into a single module, this new imaging system minimizes the deterioration of signals during transmission and delivers pure signals with minimal noise to the PRIME II imaging engine for 14-bit data processing. As the result, the K-5 produces beautiful digital images — with airy lights and truthful colors; smooth, seamless gradation transitions; rich, well-defined shadow descriptions; and faithful reproduction of pure black. The state-of-the-art technologies incorporated into the K-5 assure you of true-to-life, high-resolution digital images with vibrant, extra-sharp description — even at higher sensitivities.

A new-generation, integrated AF system is the key to speed and precision

The K-5’s AF module features the newly developed SAFOX IX+ with more advanced optics and a light source detection function to assure extra-high autofocusing accuracy, regardless of the shooting environment, image composition or illumination level of the subject. Its separator lens, which performs a crucial role in phase-matching autofocus systems, is made of a hybrid glass material highly resistant to environmental changes, to achieve a high level of precision and stability. This new AF module also demonstrates superb focusing accuracy even with subjects positioned well away from the center of the image field, while an anti-reflection coating is applied to all optical elements to improve light transmittance and minimize the deterioration of autofocusing accuracy in poor lighting conditions. Its refined algorithm also helps to minimize the AF system’s reaction time during high-speed shooting in the AF.C (Continuous) mode. Integrating a host of advanced, carefully refined technologies, the K-5’s AF system assures comfortable, responsive autofocus operation on all subjects, in all conditions.

High-speed shooting at seven images per second freezes decisive moments sharply and vividly

The K-5 provides high-speed continuous shooting at approximately seven images per second, allowing you to preserve fast-fleeing, once-in-a-lifetime moments in crisp, brilliant digital images. To achieve this, PENTAX not only upgraded the speed of the driving mechanism, but also redesigned the mirror cam and reprogrammed the start/stop sequence of the drive motor’s rotation. The result is the achievement of the optimal drive speed, while the impact of the mirror’s bounce during its swing-up/down action is minimized. Since the mirror comes to a complete stop at the swing-down position and sets itself ready for a next image, the speed of continuous shooting in the AF.C (Continuous) mode is greatly improved. At the same time, both shutter noise and finder shake are effectively minimized, for more comfortable shooting. The K-5 is also preprogrammed to automatically set the Focus-Priority/Shutter-Speed-Priority mode in the AF.C mode, or the Focus-Priority/Shutter-Release-Priority mode in the AF.S (Single) mode.

K-5 18-135 Lens Kit

• PENTAX K-5 camera body
• smc PENTAX-DA 18-135mm F3.5-5.6 ED AL [IF] DC WR (lens hood included)



K-5 18-55 WR Lens Kit

• PENTAX K-5 camera body
• smc PENTAX-DA 18-55mm F3.5-5.6 AL WR (lens hood included)



K-5 camera body

•PENTAX K-5 camera body only

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