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Astromania Telescope Filter 2 Inch Upgrated O-III Comet Filter Narrowband for Telescope, 99% High Transmission - Light Pollution Reduction for Astrophotography, Fit 2 Inch Telescope Accessory in Saudi Arabia Astromania Telescope Filter 2 Inch Upgrated O-III Comet Filter Narrowband for Telescope, 99% High Transmission - Light Pollution Reduction for Astrophotography, Fit 2 Inch Telescope Accessory in Saudi Arabia Astromania Telescope Filter 2 Inch Upgrated O-III Comet Filter Narrowband for Telescope, 99% High Transmission - Light Pollution Reduction for Astrophotography, Fit 2 Inch Telescope Accessory in Saudi Arabia Astromania Telescope Filter 2 Inch Upgrated O-III Comet Filter Narrowband for Telescope, 99% High Transmission - Light Pollution Reduction for Astrophotography, Fit 2 Inch Telescope Accessory in Saudi Arabia Astromania Telescope Filter 2 Inch Upgrated O-III Comet Filter Narrowband for Telescope, 99% High Transmission - Light Pollution Reduction for Astrophotography, Fit 2 Inch Telescope Accessory in Saudi Arabia Astromania Telescope Filter 2 Inch Upgrated O-III Comet Filter Narrowband for Telescope, 99% High Transmission - Light Pollution Reduction for Astrophotography, Fit 2 Inch Telescope Accessory in Saudi Arabia Astromania Telescope Filter 2 Inch Upgrated O-III Comet Filter Narrowband for Telescope, 99% High Transmission - Light Pollution Reduction for Astrophotography, Fit 2 Inch Telescope Accessory in Saudi Arabia

Astromania Telescope Filter 1.25 Inch Upgrated O-III Comet Filter Narrowband for Telescope, 99% High Transmission - Light Pollution Reduction for Astrophotography, Fit 1.25 Inch Telescope Accessory

SAR 657
Brand
Astromania
Weight
15 g
– 1 +

Special Features

  • New Upgrade: Astromania Upgrade Edition OIII Filter is used for capturing the gas tails and gas flows of comets; with the two brightest C2 emission lines at wavelengths of 511 and 514 nm; the full width at half maximum wavelength is less than 15 nm
  • High transmittance: Within the wavelength range of 504 nanometers to 525 nanometers; only the double-ionized oxygen line with wavelengths between 510 nanometers and 518 nanometers passes through with 99% of the wavelengths
  • Fused Silica Matrix: The OIII filter is made of silica matrix and has an aluminum metal casing. It features dichroic interference and anti-reflective coating; it is suitable for areas with light pollution and dark sky areas to enhance contrast
  • Advanced Narrowband Filter: Blocks the neighboring OIII line (<1% transmission), which does not appear mainly in comet tails; narrowband filter can only increase the contrast between the nebula and the night sky but not brighten it
  • Standard 1.25 Inch Thread: Suitable for large aperture telescopes with 1.25 inch focuser; compatible with 1.25 inch eyepieces; barlow lens; diagonal prism and other telescope accessories

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