Ricoh XR-P multimode
Please see the camera-wiki article on the Ricoh XR-P Multi-program. As the name (and graph) indicate, this model offers different autoexposure programs, which can prioritize depth of field (small apertures), freezing action (fast shutter speeds), or a compromise.
The new Ricoh "P" series lenses are a modification of the original Pentax K mount to enable the body to drive the aperture position. Unfortunately, Ricoh uses its own custom linkage to do this and Pentax--A lenses are not compatible.
Ricoh XR-P multimode
Please see the camera-wiki article on the Ricoh XR-P Multi-program. As the name (and graph) indicate, this model offers different autoexposure programs, which can prioritize depth of field (small apertures), freezing action (fast shutter speeds), or a compromise.
The new Ricoh "P" series lenses are a modification of the original Pentax K mount to enable the body to drive the aperture position. Unfortunately, Ricoh uses its own custom linkage to do this and Pentax--A lenses are not compatible.