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Unformatted text preview: Although theses telescope are made of different materials, they both achieve the same goal. The objective lens (in refractors) or primary mirror (in reflectors) collects a lot of light from a distant object and brings that image to a point or focus . An eyepiece lens takes the bright light from the focus of the objective lens or primary mirror and "spreads it out" (magnifies it) to take up a large portion of the retina. This is the same principle that a magnifying glass uses. The combination of an objective lens or primary mirror with the eyepiece makes up a telescope....
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This note was uploaded on 04/07/2008 for the course BLACK STUD 101 taught by Professor Carroll during the Spring '08 term at SUNY New Paltz.
- Spring '08