Guest hellogreen Posted December 8, 2008 Report Share Posted December 8, 2008 How to Measure magnification How can I see how strong a magnifying glass is? I bought this magnifying glass http://www.liangdianup.com/inventory/189901.htm 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. Quote Link to comment Share on other sites More sharing options...
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