beautypg.com

Kodak DCS Pro SLR/n User Manual

Page 169

background image

Flash Photography

April 29, 2004

10-5

Flash Shooting Distance
Range for the Built-in
Speedlight

The flash shooting distance range varies, depending on ISO and aperture.

ISO

200

400

800 1600

Flash shooting

distance range (m)

Guide number

17

24

34

48

Aperture value

2

2.8

4

5.6

2 - 8.5

2.8

4

5.6

8

1.4 - 6

4

5.6

8

11

1 - 4.2

5.6

8

11

16

0.7 - 3

8

11

16

22

0.6 - 2.1

11

16

22

32

0.6 - 1.5

16

22

32

—

0.6 - 1.1

22

32

—

—

0.6 - 0.8

You can also calculate the maximum flash shooting distance by dividing
the guide number by the aperture value.
For example, with an aperture of f/2.8 and an ISO of 200, the maximum
flash shooting distance will be 17 / 2.8 = approximately 6 m.

See also other documents in the category Kodak Cameras: