“Like the Pentax 645D that it replaces, the 645Z has a sensor that measures 43.8×32.8mm (168% the size of a 35mm frame) however Sony has provided the sensor rather than Kodak this time, and the pixel count has been boosted from 40 million to 51 million. As with Hasselblad and Phase One medium format cameras that use this CMOS device, its lack of an anti-aliasing filter boosts detail resolution.
Pentax has also coupled the sensor with a PRIME III image engine, first seen in the Pentax K-3 APS-C format SLR. This enables up to 10 raw images (or 30 images large highest quality JPEGs) to be shot at a maximum speed of approximately three frames per second (fps).”
[pe2-gallery class=”alignright” ] 
[/pe2-gallery]
Read more at ecoustics.com
