The Pentax K-3 Mark III builds on the Pentax legacy, incorporating a back-illuminated CMOS image sensor with approximately 25.73 effective megapixels. The camera produces super-high-resolution images by coupling this sensor with an AA (anti-aliasing)-filter-free optical design. A new, super-bright optical viewfinder delivers a nearly 100% field of view and magnification of approximately 1.05 times. With a newly developed high-refraction glass prism, the viewfinder provides a wide field of view equivalent to that of a full-frame SLR, fully immersing the photographer in a shooting. It features a high-performance, five-axis shake-reduction (SR) system, and the innovative Pixel Shift Resolution System. The high-definition 3.2-inch touch-screen LCD monitor—the first touch screen in the Pentax K series, improves efficiency and operability.

Back-illuminated CMOS Image Sensor with Approximately 25.73 Effective Megapixels

The Pentax K-3 Mark III is equipped with a back-illuminated CMOS image sensor with approximately 25.73 effective megapixels. The camera produces super-high-resolution images by coupling this sensor with an AA (anti-aliasing)-filter-free optical design. The newly developed, high-performance PRIME V imaging engine and new-generation accelerator unit delivers well-defined images with minimal noise while retaining high-resolution reproduction at all sensitivities — even in the super-low or super-high range. By greatly improving the noise-reduction performance at high-sensitivity ranges, it boasts a top sensitivity of ISO 1600000 to extend the range of scenes that can be photographed.

High-definition LCD Monitor with Intuitive Touch-screen Control

The Pentax K-3 Mark III features a high-definition, 3.2-inch LCD monitor with approximately 1,620,000 pixels. Incorporating touch-screen control for the first time in the Pentax K series, this monitor provides intuitive operation of monitor functions, including menu selection and image zooming during playback. Its air-gapless construction effectively reduces reflections and the dispersion of light to improve visibility during outdoor shooting. The viewfinder eyepiece is designed to protrude away from the LCD monitor screen, so the user’s nose does not contact the camera body.

SAFOX 13 Autofocus System with 101 Focus Sensors

The Pentax K-3 Mark III features a newly developed SAFOX 13 phase-matching AF sensor module for dependable, high-precision autofocus operations. It has 101 focus sensors, 25 of which are cross-type sensors positioned in the middle, to assure pinpoint focus on the subject at minimum brightness levels as low as -4 EV. Also, by featuring a new, high-capacity RGBIr image sensor with approximately 307,000 pixels and a newly developed image-tracking algorithm, the camera also assures accurate tracking of subjects moving at varying speed or in an irregular motion. A newly installed AF point selector lever allows the user to select the desired focus point more intuitively (up to 41 points).

Pentax Real-time Scene Analysis System

Supported by the combination of the new, high-density RGBIr image sensor and the high-performance PRIME V imaging engine, the Pentax Real-time Scene Analysis System instantly detects the subject’s face and eyes using advanced image recognition technology, then makes real-time analysis of their movement. This assists the camera in optimizing exposure settings and improving autofocusing.

High-speed Continuous Shooting

Thanks to a newly developed mirror-driving mechanism assuring high-speed, high-accuracy control of the mirror and shutter mechanisms, and the high-performance PRIME V imaging engine that performs high-speed data transmission, the Pentax K-3 Mark III provides high-speed drive continuous shooting — with a max speed of approximately 12 images per second in the AF.S mode or approximately 11 images per second in the AF.C mode.