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The DayStar Filters "Solar System" filter wheel allows you to view the Sun through up to four different filters with just the touch of a button
Use the Quark on any F/4-F/9 refractor for even more aperture
The Daystar Quark Prominence model is optimized for prominence viewing
The #497 has the RS-232 input that you need
QUARK Prominence Filter
Daystar ERF 130mm with 160mm Cap - E-160N130 Dew Shields By Make_Meade The DayStar Filters "Solar System"130mm ERF Glass, Cell & 160mm ID Cap For Refractors DayStar Energy Rejection Filters reduce the heat load on your filter assembly by absorbing or reflecting UV and or I light and transmitting light in the desired visual spectrum. These filters are sometimes Red or Yellow glass, or dielectric IR and UV, but pass light in the desired visual spectrum. The ERF can also serve as an aperture mask to accomplish a straight angle of incidence for light
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