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What is the advantage of high frequency illumination?

High frequency illumination provides a flicker and ripple free output that assures image quality by maintaining constant frame to frame gray level. Fluorescent lights are the best example of high frequency illumination. When determining the correct illumination for one's camera setup, make sure the frequency of the illumination is higher than the frame rate of the camera. This will help to insure constant illumination and therefore the best image quality from frame to frame. Correspondingly, high frequency illumination helps reduce operator fatigue and eye strain when used over long durations.

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