Pentax 645z + 25mm f/4 Aperture Series: Blue Beater Bike
Get Pentax 645z and Pentax 645 lens at B&H Photo.
In my review of the Pentax 645Z:
Aperture Series: Blue Beater Bike (645Z + 25mm f/4)
This example is shot at a distance that might be typical for many a landscape scene. It also involves high contrasts and a deep 3D scene for evaluating lens performance near to far and across the frame.
Includes HD and UltraHD images from f/4 to f/22 along with large crops.