Sky-Watcher O-III Filter - Ø 31.7 mm
This O-III filter allows a selection of high-contrast wavelengths to pass through, providing ideal conditions for observing supernova and planetary remnants. 31.7 mm fitting
- Item ref.
- 20194
Sky-Watcher O-III Filter - Ø 31.7 mm
Sky-Watcher O-III narrowband filter
This O III narrowband filter is specially designed for observing planetary and emission nebulae. It allows a selection of high-contrast wavelengths to pass through, providing ideal conditions for observing supernova and planetary remnants.
The O III narrowband filter isolates only the double oxygen bands (496 and 501 nm) emitted by planetary and emission nebulae. This filter is well suited for telescopes starting from a diameter of 200 mm. Available in 31.7 mm and 50.8 mm.
Main features include:
- For 31.7 mm eyepieces
- Storage box
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