In my review of the Pentax 645Z:
This example shows off what the Pentax 645Z sensor can record with a high performing lens.
Includes HD and UltraHD images from f/4 to f/22 along with large crops.
John P writes:
My thanks for how quickly you jumped on the 645z! Sounds like your expectations were fulfilled, for better or worse. Now we need the Sigma 645 Art series...
I am always impressed with your energy and thoroughness. You earn your subscription fee many times over!
DIGLLOYD: lots of positives with the 645Z, but lenses are the weak point of the system.