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Sky-Watcher O-III Filter - Ø 31.7 mm
Sky-Watcher

Sky-Watcher O-III Filter - Ø 31.7 mm

69,00 CHF
VAT included

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

1 item - available in store in Geneva
Item ref.
20194
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By your side since 1933

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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