Canon AE-1 - Manual (Page 48)

sTHmer speed dial untii the meter needle on
the ri 9 ht of the viewfinder reaches the IMop
desired.
Oepth-of Field
When a certain sub^t is brou 9 ht into
focus, there is only a limited range in the
foreground arsd background of the subiect
which can be kept dearly in focus. This zone
of sharprws in the subiect field is depth-of*
field.
There are two methods of confirming the
extent of the depth of the field: by stopping
down the lens diaphragm or by reading a value
from the depth of field scale on the lens.
I
Confirmirsg the Depth-of‘Field by
Stopping Oown the Lens Diaphragm
1. Wind the film and take an exposure read*
ing for the subject you wish to shoot.
2. Move the aperture ring off the '‘A" mack
ar>d then set the aperture ring to the aperture
indicated In the viewfir>der during the ex*
posure reading (or to the desired aperture).
3. Press the stopped-down lever until it
locks. Look into the viewfinder to visually
check the depth of field.
• Stopping*down the FD lens should only
be done after advancing the film. If the film
is not advarKed, the stoppirtg*down of the
lens diaphragm would only be possible down
to the aperture of the previous exposure.
Also, when the aperture ring islet at the '*A''
mark, the stopped•dovm lever cannot be
pressed in. Please note that stopped-down
meterirsg is impossible when the FD lens is
mounted on the AE-1.
4.
To cancel the stopping-down of the lens,
press the scopped down lever's release button.
5.
Be sure to 'turn the aperture ring to the
maximum aperture before resetting it to the
4 :