Celestron - Oxygen III (OIII) Narrowband Filter - 2" - 93624

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Each Celestron narrowband 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. Oxygen III filters are best suited to viewing gaseous and planetary nebulae.

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SKU: CEL-93624