Star Trail 500 Rule
Calculator
Max exposure before star trails (s)
13.888888
Results
- Max exposure before star trails (s)
- 13.888888
Media and photography results
| Max exposure before star trails (s) | 13.888888 |
formula-map diagram
- Max exposure before star trails (s)
- 13.888888
Media and photography relationship
Formula
t = 500 ÷ (f × crop)= 13.888888888889
Note
This result uses the values you entered and a simplified planning equation; verify quantities and local requirements before purchasing or building.