18
Flash-to-subject distance
ISO Film Wide
Tele
Speed
(24 mm)
(60 mm)
50
2 to 10 ft
2 to 7 ft
(0.6 to 3.0 m)
(0.6 to 2.1 m)
100
2 to 14 ft
2 to 10 ft
(0.6 to 4.3 m)
(0.6 to 3.0 m)
200
2 to 20 ft
2 to 14 ft
(0.6 to 6.1 m)
(0.6 to 4.3 m)
400
2 to 29 ft
2 to 20 ft
(0.6 to 8.8 m)
(0.6 to 6.1 m)
800
2 to 41 ft
2 to 28 ft
(0.6 to 12.5 m) (0.6 to 8.5 m)
1600
2 to 57 ft
2 to 39 ft
(0.6 to 17.4 m) (0.6 to 11.9 m)
Flash/warning-lamp signals
Lamp Indicator
Situation
Glows green
• Camera ready for
picture-taking
Glows red
• Subject between
8 in. (20 cm) and
2 ft (0.6 m) from
camera. Shutter
button locks.
“Blinks” red
• Flash not
fully charged
• Camera movement
• Beyond the
flash range
