- O-III Filter 1.25"
- Products Features
The 1-1/4" O-III narrowband filter isolates just the two doubly-ionized oxygen lines (496 and501nm lines) emitted by planetary and emission nebulae, while effectively blocking the rest ofthe overall spectrum of light. It results in extreme contrast between the black sky backgroundand the faint photons of O-III light needed for detailed views of the Veil, Ring, Dumbbell,Crescent and Orion nebulae, as well as other objects. As lights of all other wavelengths arefiltered out, the image presented to you have superior contrast and clarity compared to otherbroader band filters.Each filter has an ultra hard, vacuum-deposited coating carefully designed to block all of thevisual spectrums ranging from 400 to 700 nm. This then eliminates the un-natural coloredhalos surrounding bright stars common with O-III filters with less sophisticated coatingtechnology.Available in 1.25” and 2”.Highly recommended and excellent for viewing all nebulae that glow in the Oxygen III region.
* Contact your local distributor for details