| Flashgun and mode/settings | Guide number (m @ ISO100) | Notes |
| Jason's big flash (Albinar 90MDT-Z) | ||
| wide | 13.5 | |
| normal | 14.4 | |
| tele | 15.5 | |
| Jason's small flash (Vivitar auto 2600) | ||
| 9.9 | ||
| Jason's digital camera (Canon Powershot G2) | ||
| "+2" setting | 7.2 | |
| "-2" setting | 1.6 | |
| Kara (Vivitar 285) | ||
| wide | 24.3 | |
| normal | 28.8 | |
| tele | 34.3 | |
| Kara (Minolta auto 200x) | ||
| low and high | 16.6 | |
| Ari (Vivitar 285) | ||
| wide | 23.4 | |
| normal | 26.9 | |
| tele | 32.0 | |