Build a Home Made Telescope
These plans are for a homemade telescope that will be cheap to build.
Making distant objects appear close by looking
through pieces of curved
glass is always thrilling, but
the enjoyment is increased
when you peer through a
telescope that you yourself
The cost of making
a telescope is especially
low now because war-surplus
stocks of perfect and
chipped-edge lenses and
prisms are available at low
prices. You can make a good
scope for as little as one dollar,
and a really good terrestrial
telescope for only three
to five dollars for lenses.
Galilean telescope: This scope is different
from all others in that it has a negative lens for an eyepiece. Good
features are simple construction, a
clear, crisp field and an upright image.
The one poor feature is that
the field of view is small and decreases
rapidly with increases magnification. Hence, as made today,
Galilean telescopes usually
are confined to 6X or less.
A typical astronomical telescope: Typical
construction of a simple astronomical
telescope is shown in Figs. 20, 21 and 22.
This has a 2-in. diameter objective and the focal length is 36 in. A
draw tube is used for rough focusing; critical
focusing is done with a 40-pitch threaded
eyepiece. The eyepiece is a Ramsden....
How to Build a Simple Astronomical Telescope
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