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Magnification Chart


Optical Catalog

Magnification Chart

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Each line is an example of newsprint magnified at the given power. 
After you print this READING CHART, read it at a distance of 10 to 15 inches from your eyes.
Whatever line you read comfortably is the magnification you need for a magnifier.
The magnification power is listed to the right.

Reading 10X/40D
Requires 8X/32D
Adequate 6X/24D
Lighting and 5X/20D
Magnification. 4X/16D
A magnifier should 3X/12D
Allow you to read your mail. 2X/8D
This print is similar to small headlines. 1.5X/6D
Congratulations! You are now reading small print.  

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