4.Keep the subject within the distance range for the speed of film in your camera (see
Flash-to-subject distance
| C400AF | C300AUTO |
ISO | ||
film speed distance | distance | |
50 | 2.6 to 7 ft | 3.3 to 7 ft |
| (0.8 to 2.1 m) | (1.0 to 2.1 m) |
100 | 2.6 to 10 ft | 3.3 to 10 ft |
| (0.8 to 3.1 m) | (1.0 to 3.1 m) |
200 | 2.6 to 13 ft | 3.3 to 13 ft |
| (0.8 to 4.0 m) | (1.0 to 4.0 m) |
400 | 2.6 to 18 ft | 3.3 to 18 ft |
| (0.8 to 5.5 m) | (1.0 to 5.5 m) |
800 | 2.6 to 28 ft | 3.3 to 28 ft |
| (0.8 to 8.5 m) | (1.0 to 8.5 m) |
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