Canon A-1 - Manual (Page 129)

Multiple Exposures
Making two or more exposures on the same
frame is an exciting technique which is very
simple to perform with the A - l . After
making the first exposure, do not turn the
film advance lever but return it to its
retracted position close to the camera body.
Switch the multiple exposure lever under­
neath the film advance lever to the left. A
red dot will appear indicating that the
camera is set for a multiple exposure. Now
turn the film advance lever. The film will
remain stationary, holding its exact position.
At the same time the shutter will be re­
cocked, ¿md the multiple exposure lever will
automatically return to its original position
over the red dot. When you press the shutter
button, your second shot will be in exact
registration over the first. If you turn the
film advance lever, the camera will be set for
the next frame.
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