Orion Dew Zapper for 280mm (11") Cassegrains
by Orion
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Customers in the UK,
Buy this product at amazon.co.uk
for British Pounds
Digital Photo Product Details
Manufacturer: OrionProduct features:
- Electronic dew elimination system keeps dew from forming on the corrector lens
- Improves view quality by preventing dew accumulation from disrupting optical performance
- Plugs into a car cigarette light or a field battery (sold separately)
- Fits 11" Schmidt-Cassegrain telescopes
- Dew Zapper heating band runs on 12-volt DC power
Digital Cameras Photo Reviews of Orion Dew Zapper for 280mm (11") Cassegrains
Customer Review: Orion Dew zapper field use
Summary: 5 Stars
I have used the Orion Dew zapper with my Celestron 8 and also Celestron 11. Both perform perfectly at night and in all conditions preventing dew from forming. Be sure to have a long enough car chord to prevent telescope pointing at different angles from tangling the existing chord; I highly recommend this product!
Description of Orion Dew Zapper for 280mm (11") Cassegrains
With Dew Zapper, you'll never have to stop observing to remove condensation from the front plate of your Schmidt-Cassegrain or Maksutov-Cassegrain. An unprotected corrector lens will radiate heat, quickly cooling to below ambient air temperature, allowing dew to form. Dew Zapper gently replaces lost heat, bringing the temperature of the corrector lens back above the dew point. Dew can't form, and you never get "heat wave" disturbances like those caused by warm-air blowers and heated dew caps. The flexible, fiberglass-reinforced heating element straps securely in place with a Velcro fastener. Runs on 12-volt DC power. Plugs into a car cigarette-lighter receptacle or a field battery, delivering up to 20 watts, 2 amps. All models include a 10' cable.Dew Caps
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