Reverb Time Calculator vs Long Exposure Time Calculator
Two calculators for the same neighbourhood of questions. Here is what each measures, what you feed in, and where you'd reach for one over the other.
Reverb Time Calculator
Calculates reverberation decay time (RT60) for a room using its volume and total acoustic absorption. Use it when designing studios, concert halls, or any space where echo control matters.
- Answers
- RT60 Time (seconds)
- Inputs
- Room Volume, Absorption Coefficient
Long Exposure Time Calculator
Calculates the correct long-exposure shutter speed when stacking ND filters, accounting for reciprocity failure. Use it when shooting waterfalls, light trails, or seascapes with neutral density filters.
- Answers
- Required Exposure Time (seconds)
- Inputs
- Base Shutter Speed, ND Filter Strength, Additional ND Filter, Reciprocity Failure Compensation
At a glance
| Reverb Time Calculator | Long Exposure Time Calculator | |
|---|---|---|
| Category | Music | Photography |
| Answers | RT60 Time | Required Exposure Time |
| Inputs | 2 | 4 |
| Result unit | seconds | seconds |
When to use each
Calculates reverberation decay time (RT60) for a room using its volume and total acoustic absorption. Use it when designing studios, concert halls, or any space where echo control matters.
Calculates the correct long-exposure shutter speed when stacking ND filters, accounting for reciprocity failure. Use it when shooting waterfalls, light trails, or seascapes with neutral density filters.