Description
Details
Celestron 93623 Narrowband Oxygen III 1.25" Filter, Isolates Oxygen Lines Emitted by Planetary and Emission Nebulae: 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. Eliminates un-natural coloured halos surrounding bright stars.
Key features
- 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
- Eliminates un-natural coloured halos surrounding bright stars
- Contrast between the black sky background and the faint photons of OIII light provides detailed views of the Veil, Ring, Dumbbell, Crescent and Orion nebulae, among other objects
- Material: Optical Glass
- Colour: Black
Product specifics
- Brand: Celestron
- Category: Telescope Accessories
- Size: 1.25 inch
- Colour: Black
- Material: Optical Glass
- Model: 93623-CGL
- Part number: 93623-CGL