Guide number
Normal flash/STD flash distribution (ISO 100)
-
Manual flash/35mm-format
| Flash power level | Flash coverage setting (mm) | |
|---|---|---|
| 24 (*) | 50 | |
| 1/1 | 20 | 28 |
| 1/2 | 14.1 | 19.8 |
| 1/4 | 10 | 14 |
| 1/8 | 7.1 | 9.9 |
| 1/16 | 5 | 7 |
| 1/32 | 3.5 | 4.9 |
| 1/64 | 2.5 | 3.5 |
| 1/128 | 1.8 | 2.5 |
* When the wide panel is attached.
-
APS-C format
| Flash power level | Flash coverage setting (mm) | |
|---|---|---|
| 24 (*) | 50 | |
| 1/1 | 20 | 28 |
| 1/2 | 14.1 | 19.8 |
| 1/4 | 10 | 14 |
| 1/8 | 7.1 | 9.9 |
| 1/16 | 5 | 7 |
| 1/32 | 3.5 | 4.9 |
| 1/64 | 2.5 | 3.5 |
| 1/128 | 1.8 | 2.5 |
* When the wide panel is attached.
HSS flat flash/STD flash distribution (ISO 100)
-
Manual flash/35mm-format
| Shutter speed | Flash coverage setting (mm) | |
|---|---|---|
| 24 (*) | 50 | |
| 1/250 | 6.4 | 10.8 |
| 1/500 | 4.6 | 7.7 |
| 1/1000 | 3.2 | 5.4 |
| 1/2000 | 2.3 | 3.8 |
| 1/4000 | 1.6 | 2.7 |
| 1/8000 | 1.1 | 1.9 |
| 1/16000 | 0.8 | 1.4 |
* When the wide panel is attached.
-
APS-C format
| Shutter speed | Flash coverage setting (mm) | |
|---|---|---|
| 24 (*) | 50 | |
| 1/250 | 6.4 | 10.8 |
| 1/500 | 4.6 | 7.7 |
| 1/1000 | 3.2 | 5.4 |
| 1/2000 | 2.3 | 3.8 |
| 1/4000 | 1.6 | 2.7 |
| 1/8000 | 1.1 | 1.9 |
| 1/16000 | 0.8 | 1.4 |
* When the wide panel is attached.
