CHANGING THE LENS
To remove the lens from the camera body, press the lens release button and, holding the button depressed, twist the lens clockwise as far as it will go. With this action, the lens will come loose and can be lifted out.
To mount a lens fitted with a meter coupling ridge, perform the following: Check that the meter coupling lever is released (see "Coupling Lever Lock/Release Operation" on page 43 for details); position the lens in the camera's lens mounting flange so that the mounting indexes on the lens and camera body are aligned; and, then, twist the lens counterclockwise
until it clicks and locks into place. These steps provide for full mounting of the lens, while simultaneously indexing the lens' maximum aperture setting to the camera's metering circuit.
To mount a lens not fitted with a meter coupling ridge, first lock the meter coupling lever in the up position (again, see "Coupling Lever Lock/Release Operation" for details). Then mount the lens and lock it into posi- tion as explained previously. For operation with lenses not fitted with a meter coupling ridge,