Exposure Value (EV) Calculator
Calculate EV based on ISO, Aperture, and Shutter Speed
Exposure Value (EV) is a number that represents a combination of a camera's shutter speed and f-number, such that all combinations that yield the same exposure have the same EV.
Calculator Inputs
Enter denominator (e.g., 100 for 1/100s)
Results
Enter values above to see your results
How It Works
EV = log2(N²/t) - log2(ISO/100). N=Aperture, t=Time(s).
Tips & Best Practices
- •EV 15 is typical for a sunny day (Sunny 16 Rule).
- •EV 0 is approx dim indoor lighting.
Frequently Asked Questions
Why calculate EV?
It helps in setting exposure manually or checking light meter readings against known lighting conditions.
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