Luxo - Principles of Magnification

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Magnification products are an essential element to the daily activities of many individuals today. Whether the application is for commercial, professional or personal use, a magnifier enhances one's ability to perform or enjoy a task or hobby.

Focal Length:

The distance from the center of the lens (or lens system) to the viewed object. Focal length is the distance from the bottom of the lens to the object when the object appears at maximum magnification without distortion. It is important to remember that as magnification increases, the focal length decreases.

Working distance:

Working distance is measured from the lowest protruding portion of the magnifier below the lens, usually the bottom of the shade or shade housing to the object when it appears in focus...

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