Developed by Ricoh Imaging as the flagship of the PENTAX K digital SLR camera series, the Pentax K-3 with 24MP APS-C CMOS sensor adds the unique 'anti-aliasing simulator' to its low pass filter-less design. Housed in a weather-sealed magnesium alloy body, the camera can deliver 8.3 frames per second in bursts of 23 RAW or 60 JPEG images. Utilising the sensor-shift image stabilisation mechanism it adds a controllable 'anti-moiré' effect. The K-3 delivers Full HD video with stereo sound and an upgraded interval movie mode for capturing 4K movie clips. It also incorporates a new PRIME III processor and 27-point SAFOX II AF system, with 25 cross-type sensors. The shutter is now rated at a robust 200,000 actuations.