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Old Dec 4th 2008, 01:43 AM   #1
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Join Date: Dec 2008
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Measuring magnification

How to Measure magnification
How can I see how strong a magnifying glass is?

I bought this magnifying glass Wholesale Magnifying Glass With Free Shipping From China Distributor and I want
to know how to test it to see how strong it is. I hear a lot of people talk about
magnifying and how strong the magnification is, but I would like to know the true
magnification of my magnifying glass. I have a few of them and some seem stronger then
others. How can I rate these? How can I pin a correct number on mine? How do the companies
that make these come up with these numbers.
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Old Dec 4th 2008, 10:13 PM   #2
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If magnification is not very high for you magnifying glass, you may use a standard length, e.g. 1cm, after placing you magnifying glass above the standard length. Then measure the length of image again. The length of image divided by 1cm is the magnification
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