Pentax K-3 Mark III body, black

PENTAX believes in the future of SLR photography. As the pioneer of SLR cameras in Japan, PENTAX has devoted all its assets — its philosophy, technologies and passion — to the development of this remarkable camera. The PENTAX K-3 Mark III: the new flagship of the APS-C-format SLR lineup. Take a picture.

High-performance viewfinder
The PENTAX K-3 Mark III features a high-performance viewfinder with a high-refraction glass pentaprism to provide approximately 1.05-times magnification (with an FA 50mm F1.4 lens set at infinity). Despite the compact, lightweight APS-C-format SLR body, it delivers a truthful, wide-view image equal to that of a full-frame SLR, and helps you to become more fully immersed in the photo-shooting process. This viewfinder also provides an almost 10-percent increase in brightness, thanks to the improved reflectance of the pentaprism, while also assuring a nearly 100-percent field of view. By incorporating a distortion-compensating optical element and optimizing the lens coatings, it provides natural, true-to-life image rendition with high-magnification observations.

Operability that affects sensibility
The PENTAX K-3 Mark III features a leaf switch, a mechanism previously used in the PENTAX 645Z and PENTAX K-1. Compared to the tactile switch more commonly used in compact SLR cameras, the leaf switch provides a lighter, smoother shutter action and minimizes the camera shake caused by the shutter-release action. It also helps you by providing effortless hold-down of the shutter-release button during continuous shooting. The time lag between the shutter release and an image capture has also been reduced, compared to the PENTAX K-3 II, while the camera’s mirror- and shutter-driving mechanisms have also been upgraded. By reducing unwanted mechanical actions such as mirror bounce, it provides crisp, pleasant shutter-release action. You can feel the smooth action and speedy response every time you press the shutter-release button.

New back-illuminated CMOS imaging sensor with approximately 25.7 megapixels
To further improve image quality, the PENTAX K-3 Mark III incorporates a newly adopted, back-illuminated imaging sensor with approximately 25.7 effective megapixels. It also features an AA (anti-aliasing)-filter-free design to faithfully reproduce the delicacy of light, or the fine outlines of a subject.

PRIME V imaging engine and second-generation accelerator unit
For the PENTAX K-3 Mark III, PENTAX developed the PRIME V imaging engine and the second-generation accelerator unit. This combination provides a harmony of flawless, high-speed operations and super-high-sensitivity, high-quality imaging, all at a level of performance higher than ever before. The overall performance of the PENTAX Real-time Scene Analysis System and the autofocus system has also been much improved to ensure: flawless, high-speed operation; super-high-sensitivity, high-resolution imaging; better autofocus performance; and a broader range of shooting functions.

Superb imaging power over the entire sensitivity range
Thanks to its multi-dimensional image space filtering process, the PENTAX K-3 Mark III greatly reduces noise, while still retaining the subtle outlines of a subject. This advanced technology optimizes the camera’s resolving power, and faithfully reproduces the subject's texture and detail. It also improves image description in the lower sensitivity range, while minimizing unfaithful reproduction of blacks in the higher sensitivity range where color reproduction becomes more difficult. Even at the top sensitivity of ISO 1,600,000, it delivers a natural, well-defined image with a sharp subject outline and vivid colors.

SRII for five-axis, 5.5-shutter-step camera shake compensation
The PENTAX K-3 Mark III's SR II mechanism compensates for camera shake caused by horizontal and vertical shift, roll, pitch and yaw, with a wide compensation range up to approximately 5.5 shutter steps. In addition to the all-purpose Auto mode, this mechanism also provides a Panning mode to capture slow-moving subjects. You can choose the mode that provides the ideal compensation effect for your subject.

Pixel Shift Resolution System
By taking advantage of the SR II mechanism, this innovative system* captures four images of the same scene by slightly shifting the image sensor for each image to obtain all RGB color data for each pixel, then synthesizes them into a single, super-high-resolution composite image. This assists the camera in producing super-high-resolution images with true-to-life colors free of false color or noises — something conventional cameras fail to deliver.

High-speed drive, with a maximum speed of approximately 12 images per second
Thanks to the combination of a newly developed mirror and shutter driving unit and the high-speed, high-performance PRIME V imaging engine, the PENTAX K-3 Mark III provides a high-speed drive system with a maximum speed of approximately 12 images per second in the AF.S mode, or approximately 11 images per second in the AF.C mode. This system lets you capture a momentary expression of the subject, which couldn’t otherwise have been captured by previous models.

All-surface magnesium-alloy body
The PENTAX K-3 Mark III’s top, bottom, front and rear panels are all made of magnesium alloy. This lightweight, high-rigidity material not only protects the camera’s internal mechanisms from shock and vibration, but also creates the look of a solid, high-grade camera body.

Dual SD-card slot
The PENTAX K-3 Mark III provides a pair of SD card slots. One of the slot conform to the UHS-II standard for high-speed data writing operation. You can save data files on two separate memory cards, with a choice of recording modes: Sequential, Duplicate and RAW/JPEG Separation. You can also copy images for transfer between the two cards.

4K movie recording
The PENTAX K-3 Mark III captures 4K-resolution movie clips (3840 x 2160 pixels; 30 or 24 frames per second). The camera’s touch-screen panel makes it easy to select movie-recording functions and exposure settings, while the SR II mechanism provides its shake-compensation effect for movie recording.