Flash Synchronization
To remove the lens from the camera, press down on the lens release button and turn the lens clockwise until the black dot on the lens barrel lines up with the black dot on the front of the camera body. The lens will slip off easily.
To mount a different lens, place it in position in the camera's bayonet mount, align the black dots and twist the lens barrel counterclockwise until the lens locks into place with a click.
Note: With the 6mm f/5.6
Caution: A body cap should be placed over the lens opening to protect the interior of the camera whenever the lens is removed for any length of time. The lens opening should not be exposed to bright sunlight when the lens is removed, especially when the camera is loaded with film. When the lens is handled or stored separately, front and rear lens caps should be used to protect the lens surfaces and interior from dust and damage.