Canon A-1 Instructions Manual page 11

Stopped-down AE
1. Disengage the lens aper tur e
ring from the
"A"
mark
(necessary only on FD lens).
2.
Fold and push in the stop- ·
down lever.
3.Set the aperture by turn ing
the Jens aperture ring.
See pp. 61 -62 for detai.led
explanation.
AE Flash
1,
Insert
the Speecflite
577G's or 533G's sensor
unit or the l 99A, l 88A,
177A, 155A or 133A into
the
A -1 's
accessory sho e.
2 .Set the ASA film speed on
the flash .
3.
l'vfake sure the lens aperture
ring is set to '"A".
4. Set the auto working aper-
ture on the flash .
5 .Switch the flash
on.
6.
Wait for the pilot lamp to
light up and "F"
to app ear
in the viewfind er. See pp.
83-85 and th e Speedlite's
instruction booklet for
detailed explanation.
Manual Override
1. Disengage the lens aperture
ring from the "A" mark
(necessary only on FD lens) .
2 .Switch the AE mode selec-
tor to Tv.
3 .Select a shutter speed by
turning the AT dial.
4 . Select an aperture by turn-
ing the lens aperture ring
(using the camera-selected
aperture in the digi tal read-
out as a basis if so d esired).
See p . 65 for detailed
explanation.