|DEW BUSTING ACCESSORIES
for STARMASTER TELESCOPES
offers devices to keep the secondary mirror and Sky Commander dew-free.
Let's face it - unless you live in the desert, on many nights dew is a
big problem. In its most insidious form, dew can form on your
secondary and be invisible when you look in the focuser, but really it
is absorbing precious starlight, making images significantly
dimmer. Contrast is degraded, and faint objects disappear!
At worst, dew can shut down your observing early. Of course after
the dew forms, the sky often improves, the seeing may steady, and you
are stuck with fogged optics if you don't have the right
equipment. Here's what
you need to bust that dew.
|AstroSystems Dew Guard
|The AstroSystems dew guard will gently heat
your secondary mirror from inside the holder. Sensors
measure the temperature of the mirror and the ambient air, and
the Dew Guard maintains an adjustable, preset temperature difference
between the two by heating the mirror. This keeps your secondary
mirror above the dew point and
free of dew.
A red LED indicates when the heater is heating or on, but not
heating. It may be easily unplugged if necessary.
with 9V battery supply (as shown above)
with wiring package from secondary to the 12V outlet on the Sky Tracker
accessory plate (as shown below)
|Wiring for Secondary Mirror Dew Heater
Dew Shield for Sky Commander
nifty little shield will keep your Sky Commander dry and operating like
a champ. The Plexiglas face plate is hinged and easily flipped out of
the way. The hinge attaches to your Commander with double sided tape
(included), making it easy to install. A must have accessory!
plus $5 shipping and handling
All major components of
Starmaster Telescopes are made with pride in the United States of
America by small, community based companies.
-Cancelled orders will be subject to a restocking fee which will be
to 15% of the BASE price of the telescope, NO EXCEPTIONS.
-Orders are not transferable without permission of Starmaster
Telescopes and will be subject to additional fees.
-We are now accepting international orders for telescopes 22" in
aperture and under.
comments or questions about this site, email Starmaster Portable Telescopes.
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