ClarityHow to use this tool
- Enter starting duration, additional exposure stops.
- Select Calculate to view the result.
- Check the method and assumptions below before using the result.
Input reference and sample values
Use the units and choices shown for each field. Sample values are provided for practice, not as recommendations.
| Input | Format and units | Sample |
|---|---|---|
| Starting duration | Numeric value. Unit: seconds. Must be greater than zero. | 0.01 |
| Additional exposure stops | Numeric value. Unit: stops. Minimum: -30. Maximum: 30. | 3 |
Result for these sample inputs
0.08 seconds
Select Try the example in the form to load these values and calculate them again. This replaces the current form inputs. Compare the result with the method and worked explanation below.
The method, explained
New duration = original duration × 2^stops.
Using starting duration = 0.01 seconds, additional exposure stops = 3 stops, the result is 0.08 seconds. Change these example inputs to match your task; use the method above to check each step.
What to keep in mind
Positive stops increase exposure time; aperture and ISO are unchanged. An ideal geometric or exposure estimate. Lens behavior, stabilization, sensor crop and scene conditions may change practical results.
Methodology maintained by ClarityKit. How these tools are built and checked.