Equivalent Exposure Calculator

Exposure A (Reference)

Reference Exposure Settings

Aperture (f-stop)

Shutter Speed

ISO

Settings EV: —

Light Value (EV at ISO 100): —

Exposure B (Adjusted)

Adjusted Exposure Settings

Aperture (f-stop)

Shutter Speed

ISO

Settings EV: —

Light Value (EV at ISO 100): —

Exposure Difference

Difference: —

Find Equivalent Exposure

Choose which parameter to adjust in Exposure B

Adjust shutter speed (aperture priority)

Adjust aperture (shutter priority)

Adjust ISO (manual mode)

Exposure Compensation

Apply EV compensation to Exposure B

EV Compensation (e.g., +1, -2/3, 1 1/3)

Step-by-Step Derivation