The Five Numbers That Explain a Telescope - Cosmic Pursuits from cosmicpursuits.com To determine magnification, you divide the focal length of the telescope by the focal length of the eyepiece. 10x magnification handheld magnifier magnifying glass handle low vision aid new. When i want to see specific features it goes up, sometimes way up.
Low power is 40x magnification, medium power is 100x magnification, high dry is 400x magnification, and oil immerson is 1000x magnification.
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