Canon A-1 - Manual (Page 14)

Wide Metering Range
With its extensive film sensitivity range
(ASA 6-12800) and 16 shutter speeds
(1/1000-30 sec.), the A-1 offers a wide AE
metering range from EV18 (f/16, 1/1000
sec.) all the way down to EV-2 (f/1.4, 8 sec.)
with ASA 100 film and an f/1.4 speed lens.
Provided that you can even focus your
subject in the viewfinder in a very dark
situation, it is most likely that you will be
able to meter it as well, even in an AE mode.
This is especially advantageous in such
dimly-lit situations as those in night scenes
and photomacrography.
Other Special Features
Add to these features the A-l’s single-lever
multiple exposure operation and its two-
interval self-timer with an LED warning.
Switching one small lever before winding the
film sets the A-1 for a multiple exposure.
The film and even the frame counter remain
stationary for unlimited multiple exposures.
You can set the self-timer for a time-lag of
either two or ten seconds during which an
easily visible LED flashes. Flashing frequen­
cy increases as a warning prior to shutter
release.
Finally, seemingly small features, but big
advantages in photography,include the A-l’s