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Contrast ratio
| ΔEV |
Contrast
|
| 1.0 |
1:2
|
| 1.6 |
1:3
|
| 2.0 |
1:4
|
| 2.3 |
1:5
|
| 2.6 |
1:6
|
| 2.8 |
1:7
|
| 3.0 |
1:8
|
| 3.2 |
1:9
|
| 3.3 |
1:10
|
Studio flash ratios
| Ratio |
f/5 |
f/5.6 |
f/6.3 |
f/7.1 |
f/8 |
f/9 |
f/10 |
f/11 |
f/13 |
f/14 |
f/16 |
f/18 |
f/20 |
f/22
|
| f/6.3
|
1:1.5 |
1:1.5 |
- |
1:1.5 |
1:1.5 |
1:2.0 |
1:2.5 |
1:3.0 |
1:4.5 |
1:5.0 |
1:6.5 |
1:8.0 |
1:10.0 |
1:12.0
|
| f/7.1
|
1:20 |
1:1.5 |
1:1.5 |
- |
1:1.5 |
1:1.5 |
1:2.0 |
1:2.5 |
1:3.5 |
1:4.0 |
1:5.0 |
1:6.5 |
1:8.0 |
1:9.5
|
| f/8
|
1:2.5 |
1:2.0 |
1:1.5 |
1:1.5 |
- |
1:1.5 |
1:1.5 |
1:2.0 |
1:2.5 |
1:3.0 |
1:4.0 |
1:5.0 |
1:6.5 |
1:7.5
|
| f/9
|
1:3.0 |
1:2.5 |
1:2.0 |
1:1.5 |
1:1.5 |
- |
1:1.0 |
1:1.5 |
1:2.0 |
1:2.5 |
1:3.0 |
1:4.0 |
1:5.0 |
1:6.0
|
| f/10
|
1:4.0 |
1:3.0 |
1:2.5 |
1:2.0 |
1:1.5 |
1:1.0 |
- |
1:1.0 |
1:1.5 |
1:2.0 |
1:2.5 |
1:3.0 |
1:4.0 |
1:5.0
|
| f/11
|
1:5.0 |
1:4.0 |
1:3.0 |
1:2.5 |
1:2.0 |
1:1.5 |
1:1.0 |
- |
1:1.5 |
1:1.5 |
1:2.0 |
1:2.5 |
1:3.5 |
1:4.0
|
| f/13
|
1:7.0 |
1:5.5 |
1:4.5 |
1:3.5 |
1:2.5 |
1:2.0 |
1:1.5 |
1:1.5 |
- |
1:1.0 |
1:1.5 |
1:2.0 |
1:2.5 |
1:3.0
|
| f/14
|
1:8.0 |
1:6.5 |
1:5.0 |
1:4.0 |
1:3.0 |
1:2.5 |
1:2.0 |
1:1.5 |
1:1.0 |
- |
1:1.5 |
1:1.5 |
1:2.0 |
1:2.5
|
| f/16
|
1:10.0 |
1:8.0 |
1:6.5 |
1:5.0 |
1:4.0 |
1:3.0 |
1:2.5 |
1:2.0 |
1:1.15 |
1:1.5 |
- |
1:1.5 |
1:1.5 |
1:2.0
|
| f/18
|
1:13.0 |
1:10.5 |
1:8.0 |
1:6.5 |
1:5.0 |
1:4.0 |
1:3.0 |
1:2.5 |
1:2.0 |
1:1.5 |
1:1.5 |
- |
1:1.0 |
1:1.5
|
