The Pentax K-3 uses their K-mount system, and features the PENTAX KAF2 bayonet stainless steel mount. This allows the camera to use any PENTAX KAF3, KAF2, KAF, or KA lenses. A newly developed AF system uses 27 point, TTL phase matching system to accurately focus in all lighting conditions.
Capturing the images for the K-3 is a 24-Megapixel, APS-C sized CMOS imaging sensor. This high resolution sensor features a shake/dust reduction system to keep the sensor clean, and your photos free of blur from camera shake. For auto shooting the camera also features an 86k pixel RGB metering sensor that controls the camera's Auto Exposure and Scene Recognition systems. This ensures the most accurate exposure for your current shooting situation.
Included with our K-3 is the smc 50-200mm f/4-5.6 ED WR. This 4x optical zoom lens features weather-resistant construction and a zoom range that is on the longer side. This lens does not feature any type of image stabilization, which is not an issue since the K-3 features a built-in Shake Reduction system. Since it is built into the camera, it works with any Pentax lens that you attach to the camera.
For low-light and fill flash needs, the K-3 features a powerful pop-up TTL flash unit. With a GN of 13m @ ISO 100, it gives you more power than most built-in flash units. The hot shoe also allows for the use of a high speed external flash unit w/ wireless capabilities.
Shooting information, image playback and Live View composition is all accomplished with the 3.2-inch, 1037k dot LCD screen. This incredibly high resolution LCD is a great way to shoot and capture video. It also works great in place of a monitor for checking your images in the field. This screen is easy to see in all lighting conditions thanks to the 15 levels of adjustable brightness.
Pentax's pentaprism optical view finder features a full 100% field of view and 0.95 magnification and dioptic adjustment, allowing for easy and accurate framing of your images. AF points and full shooting information are also available so you never have to take the camera away from your eye to check a setting.
On top of the camera to the left is the very convenient mode dial. Featuring all of the camera's shooting settings and a lock that can be turned on an off; it can be set quickly or locked to avoid being turned accidentally. The best of both worlds, all rolled into one.