Contax 159 MM
|Contax 159MM with Carl Zeiss Planar 50/1.4|
image by Carlos Santisteban (Image rights)
This camera has a Contax / Yashica bayonet lens mount. It is compatible with MM lenses which has a metal flange that allows the camera to set the aperture. This is used for shutter and program priority modes. Those modes cannot function without MM lenses. The shutter is a electronic quartz-timed unit with speeds from 1s to 1/4000, and B. The TTL metering system features Silicon Photo Diode with a range of 0 to 20 EV (ISO 100 with f1.4 lens) with a film speed of 12 to 3200 ISO. It can be powered by 2x SR44 batteries.