See our range of 3 step macadam LED Strip All we can measure is how the value of a particular parameter compares to what the average person seesĮxample on the diagram that shows a close up of the 3200 K point with the black body line and three sizes of MacAdam ellipses, 2-step, 4-step, and 7-step There are no absolutes in vision science-just comparative statistics. MacAdam ellipses, like just about all photometric topics, are not absolute measurements based on some definable physical property such as weight, length or time instead, they are derived from statistical measurements of the visual properties of samples of the population. MacAdam ellipses provide a guideline as to how accurate the average person’s color vision is, and how good they are at distinguishing between similar colors. What Macadams Ellipses mean - for dummies.
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