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.
Nosso comentário experiente:
O filtro solar é compatível, por exemplo, com os telescópios Skywatcher N150/750, N150/1200, Omegon 150/750 EQ-3, Omegon 150/750 EQ-4 ou os Skywatcher e Orion 6" Dobson. Nos telescópios Omegon, deve remover as inserções de borracha e substituí-las por outras mais finas, se necessário.
O diâmetro interno do filtro é de aproximadamente 186 mm. Com a inserção de borracha, é de aproximadamente 182 mm.
(Marcus Schenk )
