![iso on camera meaning iso on camera meaning](https://www.exposureguide.com/media/image-quality-and-iso-sensitivity.jpg)
The following table summarizes the two sensitivity measurements supported by Imatest. Measurements are most representative of the sensor when the camera is set to its minimum EI (though it may not be perfectly representative if the system saturates- reaches maximum pixel level- before the sensor itself saturates).
ISO ON CAMERA MEANING ISO
For example, one might say, “The camera’s Saturation-based ISO sensitivity is 80 when the Exposure Index is set to 100.”
![iso on camera meaning iso on camera meaning](https://photographylife.com/wp-content/uploads/2009/12/ISO-200-and-ISO-3200.jpg)
Exposure Index and Sensitivity are closely related and sometimes used interchangeably, but should be kept distinct. It is used to determine the camera’s exposure in response to a light level measurement. Imatest calculates two of them: Saturation-based ISO sensitivity and Standard Output Sensitivity.Įxposure Index (EI) is a camera setting derived from one or more of the Sensitivity measurements. Unfortunately there are several measures of Sensitivity, and they are not consistent. The higher the sensitivity, the less light (smaller aperture and/or shorter exposure time) required to capture a good quality image. ISO Sensitivity (or ISO speed) is a measure of how strongly an image sensor and/or camera responds to light.