The Pentax Z-1 is a camera with an electronically controlled shutter. This means you will need a 2CR5 to be able to operate the camera.
It uses Pentax K-AF2-mount and K-mount lenses.
The Pentax Z-1 was Pentax's flagship autofocus SLR from 1991 onwards. It used Pentax K-AF lenses but it also took classic K-mount glass and has an impressive 1/8000s max shutterspeed.
It has amazing metering (even spot metering!) and features programmed automatic modes, along with aperture and shutter-priority modes. It can also be shot in full manual mode.