When the aperture is to be set – Panasonic LUMIX DMW-FL360 User Manual
Page 33
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■ How to determine the guide
number, the aperture and the
optimum camera to subject
distance
When the camera to subject
distance and aperture have been
decided upon
® The following formula is used to
obtain the guide number (GN),
which is then set in the unit.
“Aperture (F)’' x “Camera to
subject distance (m)” ^ “ISO
sensitivity coefficient*”
When the aperture is to be set
® The following formula is used to
obtain the aperture, which is
then set in the digital camera.
“Guide number (GN)” x “ISO
sensitivity coefficient*” “Camera
to subject distance (m)”
* ISO sensitivity coefficient
ISO sensitivity
Compensation 1
coefficient
3200
5.6
1600
4.0
800
2.8
400
2.0
200
1.4
100
1.0
50
0.71
25
0.5
® For a list of guide numbers (GN),
turn to P43.
How to obtain the optimum
camera to subject distance
“Guide number (GN)” x “ISO
sensitivity coefficient*” -i-
“Aperture (F)”
33
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