Celestron 93623 Oxygen III Narrowband Filter - 1.25 in.

Celestron Oxygen III 1.25-inch Narrowband Filter for Telescopes isolates just the two doubly-ionized oxygen lines (496 and 501 nm lines) emitted by planetary and emission nebulae, while blocking the rest of the overall spectrum of light. The result is extreme contrast between the black sky background and the faint photons of OIII light needed for detailed views of the Veil, Ring, Dumbbell, Crescent and Orion nebulae, among other objects. Impressive The Oxygen filter has an ultra hard, vacuum-deposited coating carefully designed to block all of the visual spectrum ranging from 400 to 700 nm. This eliminates the un-natural colored halos surrounding bright stars common with O III filters of less sophisticated coating technology.

SUPERIOR FILTER QUALITY - Experience minimal light scatter with this narrowband filter crafted with high-quality glass for exceptional image clarity and sharpness ensuring optimal viewing. PRECISION THREADING - The 1.25" filter features meticulously crafted threads for secure and seamless attachment to your telescope eyepieces enhancing stability during observations. REDUCE LIGHT POLLUTION - Effectively blocks unwanted light from urban areas significantly improving your telescope's ability to capture faint deep-sky objects even in less-than-ideal conditions. OPTIMIZED PLANETARY VIEWING - While designed for nebulae this Oxygen III filter can subtly enhance details on certain planetary features by reducing glare and increasing contrast broadening its utility. TRUSTED BRAND REPUTATION - Benefit from Celestron's legacy of quality with this durable filter backed by a 2-year warranty ensuring reliable performance and customer satisfaction for years to come. Versatile tool ideal for astrophotography and visual observation of the cosmos