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Due to the USA–China tariff escalation, we will temporarily not receive additional inventory for Celestron and Sky-Watcher products. As a result, we are unable to accept orders for any out-of-stock items and encourage you to take advantage of the products currently in stock while supplies last.
Due to the USA–China tariff escalation, we will temporarily not receive additional inventory for Celestron and Sky-Watcher products. As a result, we are unable to accept orders for any out-of-stock items and encourage you to take advantage of the products currently in stock while supplies last.
Celestron Oxygen III Narrowband Filter - 2 in

Celestron Oxygen III Narrowband Filter - 2 in

by Celestron
SKU CEL-93624
Sold out
CA$0
CA$167.00 - CA$167.00
CA$167.00
CA$167.00 - CA$167.00
CA$167.00
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Features

  • The 2" OIII narrowband filter isolates the two doubly-ionized oxygen lines (496 and 501 nm lines)
  • Filter has ultra-hard, vacuum-deposited coating
  • Eliminates un-natural colored halos surrounding bright stars

Celestron Oxygen III Narrowband Filter - 2 in

The 2" OIII narrowband filter 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.

Each 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.