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Refracting telescope or refractor #1
https://d3e1m60ptf1oym.cloudfront.net/8cbbb62a-fa8e-11e2-80c3-372894fff436/PHYSICS-OPTICS-refracting-telescope-1_xlarge.jpghttps://www.scientific.pictures/-/galleries/night-time/-/medias/8cbbb62a-fa8e-11e2-80c3-372894fff436/pricehttps://www.scientific.pictures/-/galleries/night-time/-/medias/8cbbb62a-fa8e-11e2-80c3-372894fff436/price