The Pentax K-3 DSLR Camera is an advanced DSLR featuring a 23.35MP APS-C CMOS sensor and PRIME III image processor to produce high-resolution still imagery and full HD 1080i/p video with high low-light sensitivity to ISO 51200. Full-resolution continuous shooting is supported up to 8.3 fps for 22 consecutive RAW frames, with a top shutter speed of 1/8000 sec., and the SAFOX11 autofocus system utilizes 27 focus points, with 25 cross-type points, to maintain sharp focus in a quick and accurate manner. Benefitting the image quality is a selectable anti-aliasing filter, which can be turned on or off to either garner the highest resolution and sharpness possible or provide enhanced protection against moiré. Additionally, in-camera Shake Reduction image stabilization renders any K-mount lens stabilized and helps to minimize the appearance of camera shake when working with greater shutter speeds or longer focal lengths.

The K-3's body design incorporates 92 special seals to render it cold, dust, and weather-resistant and the magnesium alloy cover with stainless steel chassis contribute to overall durability and ruggedness. A 0.95x magnification optical pentaprism viewfinder is incorporated into the body as well as a 3.2" 1,037k-dot LCD monitor for a choice of bright, clear viewing means. Dual SD card slots extend the recording versatility of the camera and FLU memory card support enables wireless image transferring and remote camera control possibilities when in use.