From VFXPedia

Light Trim [LT]
	This tool emulates film scanner light trims. By design, this tool works best with logarithmic data, such as the images stored by the Cineon file system. When logarithmic data is provided, the Light Trim tool can be used to increase or decrease the apparent exposure level of the image.

Contents 1 Light Trim [LT] 1.1 Controls Tab 1.2 Tips for Light Trim (edit)

Controls Tab

When selected, the Lock RGBA control collapses control of all image channels into one slider. This selection is on by default. To manipulate the various color channels independently, de-select this check box.

This slider shifts the color in film, optical printing and lab printing points. 8 points equal one stop of exposure.

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Tips for Light Trim (edit)

EyeonTips:Manual/Tool Reference/Film/Light Trim