Pentax K-3 Mark III DSLR Camera Body (Black)

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.Optimizing the sense of immersion in the photo shooting process

Since the viewfinder eyepiece is designed to protrude from the LCD viewfinder display screen to prevent your nose from contacting the camera body you can look into the viewfinder more naturally and comfortably.

The eyepiece also features an eye sensor, which turns the monitor off the moment you bring your eye up to the eyepiece ring. This prevents the status screen's illumination from affecting visibility during shooting, while allowing you to capture images more comfortably.
Optimizing the ease of operation

The PENTAX K-3 Mark III features a transparent LCD viewfinder display that provides a broader range of data in the viewfinder window. Because you can adjust the camera's settings without taking your eye away from the viewfinder, you can concentrate more fully on the subject.
The camera also allows you to program the desired combination of display data, such as grid pattern and AF focus point, making it easier to swiftly change settings for a specific scene or subject.
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.
Pleasant shutter action

Ergonomic design for responsive camera operation
For comfortable shooting and easy carrying, the PENTAX K-3 Mark III's grip and control-button layout have been optimized to accommodate different hand sizes and finger lengths. Perfected after producing a series of mock-ups and conducting repeated verifications, they let you to concentrate completely on your photo shooting.