This Celestron 1.25-inch 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 700nm This eliminates the un-natural colored halos surrounding bright stars common with O III filters of less sophisticated coating technology.
Celestron Product Number: 93623
2 Year Warranty
Oxygen III filter for deep-sky imaging.
Price Match Guarantee
Oceanside Photo & Telescope wants our customers to shop with confidence knowing that you will always get the best deal available. We will match any online price that we confirm as valid. Details:
The item must be the identical item, brand name, size, weight, color, quantity and model number. It must be in stock at the time of Price Match for us to make a guarantee.
The price for an item/offer must be listed and valid at the time of match. We reserve the right to verify a competitor's advertised price and the availability of the item.
No rainchecks will be issued for items out of stock at OPTcorp.com to match a competitor's price. We do not price match competitors if they are out of stock.