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O-III Filter 1¼" Super-G 9nm – CMOS-Optimized
Telescope Accessories

O-III Filter 1¼" Super-G 9nm – CMOS-Optimized

The O-III Super-G 9 nm 1″ filter is used for visual observation and imaging of nebulae that emit doubly ionized oxygen, such as planetary nebulae and supernova remnants. Its 9 nm FWHM bandwidth...

The O-III Super-G 9 nm 1″ filter is used for visual observation and imaging of nebulae that emit doubly ionized oxygen, such as planetary nebulae and supernova remnants. Its 9 nm FWHM bandwidth darkens the sky background, while its 97% transmission at 500.7 nm allows nearly all the light from the O-III line to pass through. Its coatings are optimized for...

See Description & Specifications See Description & Specifications
93 00 €
Delivery Monday, 09 November
3,50 € to a Skroutz Point or 4,50 € to an address
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Sent from Greece
From Planitario THessalonikis 5.0 (3)
5.0 (3 reviews)
Greece
2 pieces
See Leisure on the page of Planitario THessalonikis

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Description & Specifications

The O-III Super-G 9 nm 1¼″ filter is used for visual observation and imaging of nebulae that emit doubly ionized oxygen, such as planetary nebulae and supernova remnants. Its 9 nm FWHM bandwidth darkens the sky background, while its 97% transmission at 500.7 nm allows nearly all the light from the O-III line to pass through. Its coatings are optimized for CMOS sensors and limit the transmission of unwanted wavelengths around the O-III line, as well as the Hβ line.

Suitable for imaging with DSLRs and one-shot color astronomy cameras, it can be used with telescopes with focal ratios from f/1.8 to f/12. As an alternative to a standard green RGB filter, it brings out nebulae more clearly, while stars appear dimmer.

  • Diameter: 1¼″
  • FWHM bandwidth: 9 nm
  • Transmission at 500.7 nm: 97%
  • Telescope focal ratio: f/1.8 to f/12
  • Coatings: CMOS-optimized, Reflex-Blocker and Life-Coat
  • Additional features: Parfocal, polished, with blackened edges and an anti-reflection ring

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Type
Telescope Accessories

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Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

93,00 €
3,50 € to a Skroutz Point