426
n
Exposure Program

The exposure program for programmed auto is shown in the

following graph:

The maximum and minimum values for EV vary with ISO

sensitivity; the above graph assumes an ISO sensitivity of ISO 200

equivalent.

When matrix metering is used, values over 171/3EV

are reduced to 171/3EV.

-4
-3
12
13
-2
-1
0
1
2
3
4
5
6
7
8
9
10
11
f/1.4
f/1
f/2
f/2.8
f/4
f/5.6
f/8
f/11
f/16
f/22
f/3230" 15" 8" 4" 2" 1" 2 4 8 15 30 60
125 250 500
1000
20004000
8000
22
21
20
19
18
17
16
15
14
[EV]
23
171/3
f/1.4 − f/16

ISO 200; lens with maximum aperture of f/1.4 and minimum

aperture of f/16 (e.g., AF 50mm f/1.4 D)

Shutter speed

Aperture