ISO → Stops de ruído

stops = log₂(ISO/100).
Created by
Renato Passos, Eng. de Software
Reviewed by
Renato Passos, Eng. de Software

Last updated: Apr 18, 2026

Stops acima de 100
5,0

Formula

ruído aprox

About this calculator

The ISO to Stops noise calculator is a practical tool for photographers and photography enthusiasts. It helps to convert the camera's sensitivity, expressed in ISO, into units of Stops of noise.

The Stops of noise are a measure of the noise level in an image, where one Stop represents a change of 2 in the power of the noise. The formula to convert ISO to Stops of noise is simple: Stops = log2(ISO/100).

This calculator is useful when you need to know the noise level in an image, whether to adjust the exposure settings or to evaluate the image quality. Additionally, it's essential to consider common precautions when working with noise in photographic images.

Frequently asked questions

What is a Stop of noise?

A Stop of noise is a measure of the noise level in an image, where one Stop represents a change of 2 in the power of the noise.

When should I use this calculator?

Use this calculator when you need to know the noise level in an image, whether to adjust the exposure settings or to evaluate the image quality.

How can I reduce noise in my images?

To reduce noise in your images, you can adjust the exposure settings, use image processing techniques, and avoid over-exposing the images.

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