IES Footcandle - Assembly
| Rough (easy seeing) | 20-50 fc |
| Rough (difficult seeing) | 50-100 fc |
| Medium | 100-200 fc |
| Fine | 200-500 fc* |
| Extra fine | 500-1000 fc* |
|
*Obtained with a combination of general light plus specialized supplementary lighting |
|
| Rough (easy seeing) | 20-50 fc |
| Rough (difficult seeing) | 50-100 fc |
| Medium | 100-200 fc |
| Fine | 200-500 fc* |
| Extra fine | 500-1000 fc* |
|
*Obtained with a combination of general light plus specialized supplementary lighting |
|