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Astronomy > Filters > Nebulae filters > UHC Filters > Askar > Duo > Askar Filters Duo-Band C2 SII & OIII 2"
Product no.: 81983

Filters Duo-Band C2 SII & OIII 2"

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  • Narrowband filters for OIII and SII lines
  • Relatively high half-width for short exposure times
  • High-contrast images even under a full moon

Product description

Askar Duo narrowband filters for deep sky astrophotography

For all astrophotographers, filters are one of the essential accessories for achieving perfect deep sky images. Nebulae filters for deep sky photography can effectively eliminate the influence of background light and improve the contrast of your photos. The "Colour Magic" duo narrowband filter from Askar has been specially developed for astrophotography with modern cameras and is suitable for telescopes and camera lenses.

Thanks to its narrow bandwidth of 3 nm, you can take high-quality deep sky images even in conditions of significant light pollution or bright moonlight. The contrast is significantly improved. The filter can be used with SW/mono and colour astro cameras, DSLRs and mirrorless system cameras.

In addition, the Colour Magic nebulae filters offer very good halo control, significantly reducing annoying halos and reflections around stars.

Specifications

Capacity


Central wavelength (nm)
500,7 & 672
Half-value width (nm)
OIII: 35nm±5nm, SII: 15nm±3nm
filter thickness (mm)
2
Frame
2"
Transmission
90
Mount material
Aluminium
Coating of optical system
multiple
Connection (to the telescope)
2"

General


Type
Filters
Type of build
line filter
Series
Duo

Area of application


Useful for photographs
yes
Visually useful
no
Twin stars
no
Moon & Planets
no
Nebulae & galaxies
yes

Product safety

Manufacturer: SHARPSTAR OPTICS CO.,LTD, 3/F, No.5 building , Science and Technology Center, No.79 Jin-Sui Road,, 314001 Zhe-Jiang, CN, http://www.sharpstar-optics.com
Responsible person: NIMAX GmbH, Otto-Lilienthal-Str. 9, 86899 Landsberg am Lech, DE, [email protected]
Askar Filters Duo-Band C2 SII & OIII 2"

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