Canon AE-1 Instructions Manual page 17

the film advance lever has been completely
advanced.
4.
Remove the lens' rear dust cap.
5. Remove the camera's body cap.
Operation with an FD lens which lacks
a chrome Breech-lock mount ring:
Mounting
1. Align the projecting red mount posi-
tioning point with the red dot above the
camera mount.
2. In this position, apply slight pressure to
the lens. and s i m ~ l v rotate the whole lens .
.
clockwise until i t stops and the lens release
possible with the red dot on the camera.
button pops out with a click.
Turn the lens slightly back and forth while
Do not press the lens release button applying slight pressure until it drops into
while mounting the lens. Only when this position and continue with step
2
above.
button pops out can you be sure that the Excessive sloppiness will make mounting
lens i s properly mounted and that
it
will
impossible; take care to be a s accurate a s
function properly. It is also possible to
'
possible.
mount this type of lens when it is not per-
fectly aligned with this camera. To facilitate
mounting when
it
is very dark or when you
are in a great hurry, the mount positioning
point is rounded. Simply find this point
with your finger and align it as closely as