Celestron 93623 Narrowband Oxygen III 1.25" Filter - Isolates Oxygen Lines Emitted by Planetary and Emission Nebulae, Eliminates Un-Natural Coloured($79.95Value)

Description

The 1-1/4" OIII narrowband filter isolates just the two doubly-ionized oxygen lines (496 and 501nm lines) emitted by planetary and emission nebulae, while blocking the rest of the overall spectrum of light Made in China Package Dimensions : 3.0 L x 1.0 H x 3.0 W (inches) Package Weight : 1.0 pounds UNBEATABLE WARRANTY & SUPPORT: Buy with confidence from Celestron, a leading telescope brand in California since 1960. Your purchase includes a 2-Year US Warranty and unlimited support from our team of US-based experts.