Color Management Part 1

The instrument that will allow us to do that is the spectrophotometer. Unlike the densitometer, the spectrophotometer has many filters—the exact number depends on the manufacturer/model. All those filters—let's say ours has 24—are used to break down the visible spectrum into much smaller regions. We then take measurements from our press sheet of the reflectance values within those regions and plot them along the width of the visible spectrum (400 nm-700 nm) to produce what is called a spectral curve.