Please note: This text was taken directly from the manufacturer.
Designed to fit snugly over the aperture of your telescope, these optical glass filters block 99.999% of incoming sunlight, allowing you to safely observe sunspots and solar granulation in the Sun's photosphere. The Sun appears in a natural, whitish color. The glass elements are machine-polished and triple-coated with nickel-chromium stainless steel for a scratch-resistant surface. Each filter has three nylon thumbscrews to ensure a snug fit to the front of your telescope or binocular. The thumbscrews complement the press-fit foam lining inside the filter's durable aluminum cell to accommodate diameters up to ᄐ" smaller than the nominal size. A tight press fit is still required for safe solar viewing. Lifetime limited warranty.
Vår expertkommentar:
Solfiltret passar t.ex. på teleskop Skywatcher N150/750, N150/1200, Omegon 150/750 EQ-3, Omegon 150/750 EQ-4 eller Skywatcher och Orion 6" Dobson. På Omegon-teleskop bör du ta bort mossgummiinsatserna och eventuellt ersätta dem med tunnare.
Filterets innerdiameter är ca 186 mm. Med insatsen av mjuk gummi är den ca 182 mm.
(Marcus Schenk )