Price search results for 1.25 Orion UltraBlock NarrowBand Filter 

Stockist Catalogue Product Name Price  
Orion Telescopes UK 1.25" Orion UltraBlock NarrowBand Filter £69.99

1.25" Orion UltraBlock NarrowBand Filter

The UltraBlock is a great 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. With an UltraBlock, emission and planetary nebulas surface from the washed-out background sky. In dark skies, the UltraBlock also enhances the sky presence of a significant number of fainter deep-sky objects over unfiltered and wideband-filtered views.

Price:  £69.99 from  Orion Telescopes UK

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