Photography Exposure Triangle Calculator

Set your ISO, aperture, and shutter speed to see the exposure value. Shows equivalent exposures at the same EV, plus depth-of-field and motion blur effects. Nothing uploaded.

Exposure Value (EV) ? Equivalent exposures DoF guide Motion guide

Exposure Settings

Exposure Analysis

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Exposure Value (EV)

Equivalent Exposures

Learn more about the exposure triangle

What is the exposure triangle?

The relationship between ISO (sensitivity), aperture (lens opening), and shutter speed (exposure duration). Each affects brightness when changed. Balancing all three to achieve correct exposure while controlling DoF and motion blur is the core skill of manual photography.

What is an equivalent exposure?

Any ISO/aperture/shutter combination producing the same EV. ISO 100, f/8, 1/125s ≡ ISO 400, f/16, 1/125s. Same brightness, different DoF. The calculator shows all equivalent options.

How does aperture affect depth of field?

f/1.8 = very shallow DoF (blurred background, portrait look). f/11 = deep DoF (everything sharp, landscape look). The trade-off: wider aperture = more light but less DoF; narrower = less light but more DoF.