FW: source for telescope lenses

[Mary Zell <Zellm@MAIL.ASSUMPTION.PVT.K12.IA.US>]

My husband, an amateur astronomer, suggested the following:


Edmund Scientific sells a lot of different kinds of lenses.  Try the web
site at http://www.anchoroptical.com/.  The 1000 mm f.l. lens may be =
hard to
come by.  I would recommend achromatic lenses (doublets), at least for =
the
eyepiece.  As an alternative, a place like Lens Crafters could make a 50 =
mm
diameter 1000 mm f.l. lens, but it would not be a great choice in a 20 =
power
telescope.

For kits, try http://www.scientificsonline.com/.  I saw one kit there =
for
$15, but it was a 3 power el cheapo cardboard toy.  A Google search for
telescope kits ought to dredge up a few vendors.

Mary G. Zell
Librarian, Assumption High School
zellm@mail.assumption.pvt.k12.ia.us
(563) 326-5313 X226

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