objective prisms

[Roy Tucker]

Posted to CCD-world:
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Dear Fellow Photon Foragers,
     I have been contemplating the purchase of a relatively small (5.25"
diameter) objective prism for experimental and educational purposes. As you
might expect, they're cheaper in quantity than singly. Would anyone else be
interested in getting one as well? Material would be BK-7. Dispersion is
negotiable. Cost is expected to be in the $200-300 range. This would be a
relatively inexpensive way of introducing astronomy students to
astronomical spectroscopy with modest sized telescopes and CCD cameras.
     Thanks.
						Roy Tucker


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