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85
ADVANCED PHOTOGRAPHY—EXPOSURE MODE
Flexible Program
Programmed auto offers multiple combinations of shutter speed and aperture, each of which
will produce the correct exposure, giving you a degree of control over shutter speed and
aperture while leaving the camera to set exposure. To choose a new combination of shutter
speed and aperture, rotate the command dial (A). While flexible program is in effect, an
asterisk (“*”) will appear next to the exposure-mode indicator in the control panel on top of
the camera (B). To restore the default shutter speed and aperture settings, rotate the com-
mand dial until the asterisk is no longer displayed. Flexible program is also cancelled when the
camera is turned off or a two-button reset ( pg. 184) is performed.
Exposure Program
The following graph shows the exposure program for programmed auto.
The maximum and minimum values for EV vary with sensitivity (ISO equivalency). Matrix
metering reduces to 17
1
/
3
any EV that exceeds 17
1
/
3
at a sensitivity of ISO 200 equivalent.
A B
Aperture
-4
-3
1
2
1
3
-2
-1
0
1
2
3
4
5
6
7
8
9
1
0
1
1
F1.4
F1
F2
F2.8
F4
F5.6
F8
F11
F16
F22
F32
30" 15"
8"
4" 2" 1" 2 4 8 15 30 60
125 250 500
1000
2000 4000
800016000
2
2
2
1
2
0
1
9
1
8
1
7
1
6
1
5
1
4
[
EV
]
2
3
1
7
1
/
3
Metering Range: EV 1–21
ISO 200, lens with maximum aperture of f/1.4 and
minimum aperture of f/16 (e.g., AF 50 mm f/1.4D)
Shutter speed