Surf these sites: All About Eyepiece Designs -- There is a bewildering variety of eyepieces on the market today and choosing between them may be difficult for the beginning astronomer. This article describes the different eyepiece designs (such as Huygens, Ramsden, Kellner, Plössl, etc.) and lists their inherent advantages and disadvantages. Collimating Newtonian Optics -- by Mel Bartels. FAQ about Collimating a Newtonian telescope -- by Nils Olof Carlin. Meade Advanced Products Users Group -- Resources for Meade owners, including LX200, LX50, and StarFinder telescopes and Pictor CCD cameras. Measuring Reflectivity of Secondary Mirrors -- an article by Dave Scherping of the Prairie Astronomy Club. NexStar5 The Unofficial Resource Site -- A compendium of all things related to NexStar5, a 5 inch SCT manufactured by Celestron. Observing Tips -- by the Prairie Astronomy Club. Small Dob Web Site -- This Web site is devoted to users of Dobsonian reflector astronomical telescopes (commonly referred to as Dobsonians or Dobs) with apertures of about 10 inches or less.
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