Pixel Shift Resolution II: The K-1 Mark II incorporates Pixel Shift Resolution System II. Bundle Includes: Pentax K-1 Mark II DSLR Camera Body, Pentax Camera Grip, and Cameras Camera System Gadget Bag with Accessory and Cleaning Kit. 36.4MP Full-Frame CMOS Sensor: The full-frame size CMOS sensor supported by approximately 36.4MP delivers high resolution while suppressing noise levels. High ISO Sensitivity: As the combination of PRIME IV and the RICOH developed Accelerator Unit drastically reduces noise, allowing for high sensitivity up to ISO 819,200. Prime IV With RICOH Developed Accelerator Unit: The PRIME IV with 14-bit imaging processing engine coupled with our original Accelerator Unit, (a RICOH developed processing device).