Canon AE-1 - Manual (Page 80)

Using the Self-Timer
Obvious uses for the self-timer are self-
portraits and the inclusion of the photo­
grapher in the picture. The self-timer, though,
can also be used in place of a cable release
to release the shutter gently and smoothly in
close range work like photomicrography or
copying.
Push the electronic self-timer lever
forward, then press the shutter button, and
the shutter will be released 10 seconds later.
The camera memorizes the exposure value the
very instant the self-timer is activated by
pressing the shutter button. While the self-
timer is in operation, the self-timer lamp
flashes on and off.
After you finish taking a picture, the
self-timer lever should be reset to its orignal
position. Otherwise, it will function again the
next time you press the shutter button.
Exposure will be automatically determined at
the instant the shutter button is pressed, and
not when the picture is actually taken. There­
fore', avoid standing directly in front of the
lens when you press the shutter button as the