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Explore Scientific Nebula Filter Oxygen III
This Nebula Filter Oxygen III is the highest contrast Nebula Filter in the Series, a line filter for only the two emission lines of oxygen. It is a great choice for observations of supernova remnants and other nebulae that glow in Oxygen III. Different types of objects that glow in all parts of the visible spectrum (e.g., galaxies) are reduced visibly, but some normally invisible regions of nebulae are clearly visible. This filter fits all standard 1.25 or 2-inch eyepieces and filter wheels.
- Explore Scientific Nebula Filter 1.25" O-III Range from 483nm to 511nm with a peak at 496nm. Transmission 96.7%
- Explore Scientific Nebula Filter 2" O-III Range from 483nm to 511nm with a peak at 496nm. Transmission 96.7%
Available in 1.25-inch and 2-inch