Pentax K-3 Digital SLR Camera + 18-55mm WR Lens Developed to be the flagship of the PENTAX K digital SLR camera series, the K-3 features a host of advanced functions & user-friendly features to optimize image quality, operability & maneuverability under demanding shooting conditions in the field. High-resolution images with the 24 megapixels br&-new sensor: The K-3 is equipped with a new APS-C-size CMOS image sensor (23.5mm×15.6mm) with Approx. 24 effective megapixels. By coupling this sensor with a newly developed PRIME III imaging engine with high-efficiency noise & image processing capacities & an anti-aliasing filter-free design, the K-3 delivers high-resolution, fine-gradation images. It also offers a top sensitivity of ISO 51200, for the photography of detailed images even under extremely poor lighting conditions, & to simplify handheld shooting of nightscapes. Reduction of moiré as effectively as an optical anti-aliasing filter In-body SR mechanism The K-3 features a PENTAX-developed SR (Shake Reduction) mechanism that can be used with any compatible PENTAX interchangeable lens.** Thanks to the addition of an SR-dedicated servo controller & an increase in the magnetic force driving the SR unit, this mechanism assures more stable, effective camera-shake compensation than ever before. The World’s-first***, innovative anti-aliasing simulator function Newly developed for the K-3, the anti-aliasing simulator**** applies microscopic vibrations to the image sensor unit at the subpixel level during image exposure, generating the same level of moiré-reduction effect as an optical anti-aliasing filter. Unlike an optical anti-aliasing filter that always creates the identical result, this innovative simulator allows the user not only to switch the anti-aliasing filter effect on & off, but also to adjust the level of the effect. This allows the user to set the ideal effect for a particular scene or subject. User-assisting shooting functions The SR unit’s flexible design, which tilts the image sensor unit in all directions, is one reason why the K-3 can offer a host of handy shooting functions, including auto level compensation, image-composition fine-adjustment, & ASTRO TRACER, which simplifies advanced astronomical photography in combination with the optional O-GPS1 GPS Unit. ** Lenses compatible with this mechanism: K-, KA-, KAF-, KAF2-, & KAF3-mount lenses; screw-mount lenses, (with adapter); & 645- & 67-system lenses (with adapter). Some functions may not be available with all lenses. *** World’s first as an interchangeable-lens camera to carry this functionality as of October 2013. (Based on RICOH IMAGING COMPANY’s research) **** This function is most effective with a shutter speed of 1/1000 second or slower. This function is not available during HDR shooting. High-precision exposure control The K-3 is equipped with newly introduced PENTAX Real-Time Scene Analysis System that consists of Approx. 86, 000 pixel RGB light-metering sensor & enhanced algorithm, which allows it to not only control the exposure with extreme accuracy, but also to utilize the data taken in by the light-metering sensor to further enhance the accuracy of auto-focusing & white balance adjustment.. This has expanded the measurable minimum luminance level to as low as –3EV. By detecting the type of scene or subject using the light sensor, the K-3 also can not only select the exposure settings that are more consistent with the photographer’s creative intentions, but also it can make more precise distinction between the main subject & the background to improve the accuracy of flash discharge level.