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3. Program Line
The program line below applies when the camera is used in the Program
AE (P) mode with an EF 50mm f/1.4 USM lens.
Program Line Description
The bottom horizontal axis represents the shutter speed and the right
vertical axis represents the aperture. On the left edge and top edge of the
graph, the Exposure Value (EV) is indicated on a 45-degree scale. The
program line indicates the shutter speed and aperture which the Program
AE mode sets automatically for the respective EV.
Example: When the subject brightness is EV 12, the point where the
diagonal line from EV 12 (on the top edge of the graph) intersects the
program line indicates the corresponding shutter speed (1/320 sec.) and
aperture (f/3.5) which the program sets automatically.
The arrowhead lines above the graph indicate the metering range for the
respective film speed.
131
12
25
50
ISO 6
100
200
400
800
1600
3200
6400
5
4
3
2
1
0
-1
-2
-3
-4
-5
30 15 8 4 2 1 2 4 8 15 30 60 125 250 500 1000 2000 4000 8000
3.5
320
SHUTTER SPEED
Aperture
32
22
16
11
8
5.6
4
2.8
2
1.4
1.0
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Intelligent Program AE Line
With EF 50mm f/1.4 USM
09. C836-E (127~) 28-01-2003 13:03 Pagina 131