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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 by Fri, 06 Nov
14,00 €   shipping cost
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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Manufacturer Details

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Type
Telescope Accessories

Important information

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 €
14,00 €   shipping cost