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What is the true magnification of a 10x, 20x, or 30x Chinese magnifier? Why do domestic and Chinese magnifying glasses have a significant difference in magnification? How to determine the true magnification for dandruff from China? See the answers to these and other questions in this video...
For more information on the use of optics in knife sharpening, see the link in OPTICS AND ANGULATORS - • Оптика та кутоміри
Magnification converter, link - www.translator...
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