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Home > Classifieds > Astromart Classifieds > Filters > Classified #213221

For Sale: (SOLD) 2 INCH ORION SKYGLOW ULTRA BLOCK FILTER FOR SCT

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The UltraBlock is the filter for deep-sky observers located at highly light-polluted sites. Blocks all forms of light pollution - mercury vapor and sodium emission bands - while passing the critical hydrogen-beta and ionized oxygen wavelengths.
This is a 2 inch filter and threads onto the rear cell of Schmidt-Cassegrains telescopes.
PayPal is preferred method of payment, however, postal money order will be accepted.
 

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