Stops difference
Calculate Stops difference instantly with the exact formula and a worked example. Free online calculator — no signup.
Stops difference
f₁
f₂
Stops difference
2
More about: Stops difference
What it calculates
The “Stops difference” calculator computes Stops difference from 2 parameters: f₁, f₂.
Used by photographers and videographers when setting up a shoot.
Example calculation
With parameters f₁ = 2.8, f₂ = 5.6 the result is 2 (2·log₂(f₂/f₁)).
How to use
- Enter the parameter values — every field above is adjustable with a slider.
- The result and related metrics are calculated automatically as you type.
- Use the additional metrics shown (if any) where needed.
- Copy the result or bookmark the page.