Science Reflector Telescope 600x Where Can I Buy A 12 Inch Optical Glass Lense?
Where can I buy a 12 inch optical glass lense? - science reflector telescope 600x
I'm not sure what that means, the lens of a telescope, magnifying glass I could call instead of optical glass. I'm trying to build a perimeter of 12-inch Dobsonian telescope for my science fair, I must know what the memory is available. Have you seen what answer my telescope, please.
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http://cgi.ebay.com/12-5-Sandwich-Parabo ...
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Circle of 12 inches or 12 inches in diameter? _big_ There is a difference! And uses a concave parabolic mirror, not a "lens". _lot_ need more research before you leave to do to buy a mirror. Start with the book written by Richard Berry "Build your own Telescope (Willmann-Bell). A mirror telescope with a diameter of 12 inches is a big project can _years_ complete and will cost a lot of money. I would recommend some slightly much smaller, for example, a 6-inch reflector.
Fifty years ago it was quite common that people make their own telescopes. Today it has become very rare for commercial telescopes become relatively cheaper. One consequence is that it is difficult parts to find to build its own domain. Unless you are dealing with a strong motivation for learning, and follow the necessary parts, I would not recommend building your own region. As the parts are hard to find, are very expensive, and often home-made telescope cost much more than a commercially produced TelephoneShotgun. The work is very much cheaper in China, where nearly all telescopes made today.
You need a mirror. These can be as a mirror to the ground at a given focal length, or classify a flat mirror is empty, you land to your own specifications. You can save a lot of money by grinding your own work, but labor intensive. This is a test with appropriate teaching materials. The first page below is reflected in the blanks, finished levels, books and other materials. The second page has some basic information when you grind your own.
I may be wrong, but if you try to build a Dobsonian, I do not think he uses a different goal than the eye. You want a large concave mirror. It is the primary optical device by a reflector.
Here you can order the mirror
http://www.e-scopes.cc/index.html
Wally
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