Astrozap Dew Heater - 8 Inch Telescopes Telescope Type_Maksutov-Cassegrain Conjoins your QUARK filter with

Conjoins your QUARK filter with a Nikon style SLR lens for Hydrogen Alpha Solar viewing with most standard lenses

Solid and lightweight

Protection from the Outdoors - By making the eyepiece body Argon-purged

forming few or no chemical compounds with other elements) that prevents adverse reactions with eyepiece components and therefore extends the longevity of the internal components

Astrozap Dew Heater - 8 Inch Telescopes Telescope Type_Maksutov-Cassegrain Conjoins your QUARK filter withDew Heater 8 Inch Telescopes This product requires the use of a simple D C adapter (AZ 719) or dual channel controller (AZ 720) to be powered. Dew heater specs: 28. 5" in length, 14. 0 Watts @ 12 Volts, 1. 18 Amps.