YouYeap Telescopes for Kids and Beginners 70mm Aperture 300mm Telescope with Phone Adapter
$45.99$59.99
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Description
15X-150X Telescopes for Adults Suitable for Beginners 70mm aperture ensures clearer images, the bigger the aperture, the clearer the image. Powerful Magnification Magnification=Focal Length/Eyepiece Diameter Eyepiece: H6mm, H20mm: 300/6 = 50X, 300/20 = 15X 1.5X Barlow lenses together: 50 x 1.5 = 75X, 15 x 1.5 = 22.5X 3X Barlow lenses together: 50 x 3 = 150X, 15 x 3 = 45X
