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Celestron Oxygen III Narrowband Filter - 1.25 in

Retail Price: $107.95
You save: $28.00  (26%)
Our Price: $79.95



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. 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 OIII filters of less sophisticated coating technology.


Add to Cart:

  • Model: 93623
  • Shipping Weight: 0.2lbs
  • Manufactured by: Celestron

This product was added to our catalog on Saturday 04 August, 2007.