Orion Dew Zapper for 203mm (8") Cassegrains
by Orion
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Customers in the UK,
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for British Pounds
Digital Photo Product Details
Manufacturer: OrionProduct features:
- Electronic dew elimination heating strip keeps dew from forming on telescope lenses
- Especially useful for preventing dew accumulation on Schmidt-Cassegrain telescope corrector lenses
- Dew Zapper plugs into a car cigarette lighter receptacle or a portable 12V field battery (sold separately)
- Fits all Meade and Celestron 8" Schmidt-Cassegrain telescopes
- Runs on 12-volt DC power
Digital Cameras Photo Reviews of Orion Dew Zapper for 203mm (8") Cassegrains
Customer Review: Does What It Says
Summary: 5 Stars
I've used this device three times, most recently for two hours on a cold and humid night. I have not had a trace of condensation on my telescope's optics. My OTA was wet, and my red dot finder was cloudy, but views through my OTA were pristine.
Description of Orion Dew Zapper for 203mm (8") 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.Telescope Accessories
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