Instruction manual

To mount lenses with steel bayonet mount: the diaphragm
lever (a) is inserted into the slot of the catch ring (4), the lens
(white index mark positioned as stated above) is carefully
pushed into the lens mounting flange and turned clockwise
until it locks.
To remove lenses with standard mount: press release
buttons (21, 55) together and pull the lens out of the
mounting flange without turning it.
To mount lenses with standard mount: the diaphragm
lever(b) is inserted into the slot of the catch ring (4). Both
buttons (21, 55) are simultaneously pressed and held
together and the lens (index mark positioned towards the
exposure meter) is carefully pushed into the lens mounting
flange. The catch in the lens mount then engages in the
guide groove of the lens barrel. Release the buttons and
check that the lens is firmly seated. -