Ev are re duced to 17, Aperture shutter speed – Nikon D2HS User Manual

Page 99

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85

Taking Photographs—Exposur

e

Flexible Program

In programmed auto, different com bi na tions of shutter
speed and ap er ture can be selected by rotating the main
com mand dial (“fl exible program”). All combinations
pro duce the same ex po sure. While fl exible program is
in effect, an asterisk (“*”) appears next to the exposure-
mode indicator in the top control panel. To restore de fault shut ter speed and aperture
settings, rotate the main com mand dial until the indicator is no longer dis played.
Default settings can also be re stored by turning the cam era off, selecting another
exposure mode, per form ing a two-but ton re set (

126), or choosing another setting

for Custom Setting b3 (EV step;

181).

Exposure Program

The exposure program for programmed auto is shown in the fol low ing graph:

The maximum and minimum values for EV vary with sen si tiv i ty (ISO equivalency); the
above graph assumes a sen si tiv i ty of ISO 200 equivalent. When matrix metering is
used, values over 17

1

/

3

EV are re duced to 17

1

/

3

EV.

ISO 200; lens with maximum aperture of f/1.4 and mini-
mum aperture of f/16 (e.g., AF 50 mm f/1.4 D)

Aperture

Shutter speed

-4

-3

12

13

-2

-1

0

1

2

3

4

5

6

7

8

9

10

11

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 8000

22

21

20

19

18

17

16

15

14

[ EV

]

23

17

1

/

3

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