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chromatic aberration

Lighting. Blue or brown color fringing at the edge of the beam of an ERS. Caused by the fact that different wavelengths of light are transmitted at different speeds through the lens.

Can often be seen when a gobo is used
View attachment 3931

and the gobo doesn't have to be in sharp focus.
View attachment 3932

Is seldom a problem, as the effect disappears once color is added to the beam.
[file]Image:CorporateCustomGobo5.jpg|thumb[/file][file]Image:images.jpg|thumb[/file]

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