Enter the camera’s ISO setting, Exposure Value, Shutter Speed, and Aperture into the calculator to determine the Iso Adjustment.

Iso Adjustment Formula

The following formula is used to calculate the Iso Adjustment.

IA = (ISO * EV) / (SS * AP)


  • IA is the Iso Adjustment ISO is the camera’s ISO setting EV is the Exposure Value SS is the Shutter Speed AP is the Aperture

To calculate the Iso Adjustment, multiply the camera’s ISO setting by the Exposure Value. Then divide this result by the product of the Shutter Speed and the Aperture.

What is an Iso Adjustment?

An ISO adjustment is a camera setting that controls the sensitivity of the camera’s sensor to light. Increasing the ISO number makes the sensor more sensitive to light, allowing for brighter images in low-light conditions. However, a higher ISO can also lead to more noise or grain in the image. Conversely, a lower ISO number makes the sensor less sensitive to light, which can result in darker images but with less noise. Therefore, adjusting the ISO is a balancing act between image brightness and image quality.