• The stronger the power of the lens, the smaller the diameter.

• The stronger the lens, the closer it must be to the paper.

• The greater the magnification used, the smaller the area viewed.

• Strong lenses reduce the transmission of light, and thus more light may be required.

• The direction a magnifier is faced, may make a big difference.

• The closer your eye is to the magnifier, the wider the field of view.

• High powered lenses have a lot of distortion.

• Not all marked magnification powers are equivalent.

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