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Telescope accessories > Filters > Nebulae filters > SII Filters > Pro > Omegon Filters Pro SII 7nm Filter 1.25"
Product no.: 60112

Filters Pro SII 7nm Filter 1.25"

RRP: $ 179.00 Our price:
$ 149.00 incl. VAT, plus shipping costs
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Product description

More about the series Pro...

Omegon SII Filter: for astronomy photos rich in contrast

The Omegon SII filter allows 672 nanometre emissions from ionised sulphur atoms to pass through, and improves the contrast for the astrofotography of SII rich regions when combined with other filters. Ambitious astrophotographers can take amazing pictures, even from light-polluted city locations.

The highlights at a glance:

  • Special coating: ensures high transmission and optimum contrast
  • For monochrome cameras: the filter should be used in combination with OIII and H-alpha filters
  • The narrow band filter allows the emissions of sulphur atoms to pass through at 672 nanometres with a bandwidth of 7 nanometres
  • Blocks light from artificial illumination
  • Suitable for telescopes with an aperture of 8 inches or more
  • For astronomy CCD cameras and astro-modified DSLR cameras

The Omegon SII filter is a special CCD filter that increases the contrast between celestial objects and the background sky. It is suitable for photographing stellar nurseries and planetary nebulae from light-polluted cities, but it is also effective for countryside locations. The filter isolates SII emissions and accentuates bright red nebular structures. Famous examples are the Orion Nebula or the Lagoon Nebula.

Due to its narrow full width at half maximum of just 7nm, it delivers high transmission in the single ionized sulphur spectrum, and also further increased contrast compared to wider band filters.

Specifications

Capacity


Mount material
Aluminium
Connection (to the telescope)
1,25"
Frame
1,25"
Central wavelength (nm)
672
Half-value width (nm)
7

General


Series
Pro
Type
Filters
Type of build
line filter

Area of application


Anti light-pollution
yes
Hydrogen nebulae
yes
Planetary nebulae
yes
Comets
-
Central stars
-
Supernova remains
yes
Useful for photographs
yes
Visually useful
-

Recommended accessories

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Omegon 1.25'' filter wheel

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*All prices include VAT plus shipping costs.

Omegon Filters Pro SII 7nm Filter 1.25"
Omegon Filters Pro SII 7nm Filter 1.25"

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