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Astronomik H-Alpha 6 nm CCD Filter - 27 mm Round - HA6-27

SKU: ASF-HA6-27

Product is backordered from the manufacturer. Once the order is placed our team will update you on the anticipated arrival date.

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Astronomik H-Alpha 6 nm CCD Filter - 27 mm Round



  • This Astronomik H-Alpha CCD Filter comes in a 27 mm round configuration
  • Designed with the highest technical standards in mind to enable the superb optical performance desired for imaging deep sky objects
  • Simultaneously allows light from H-Alpha sources to be transmitted while blocking IR along with almost the complete balance of the visual spectrum
  • Roughly 6 nm FWHM bandwidth
  • All unwanted light pollution is blocked, making this filter optimal for imaging supernova residue as well as planetary nebulae
  • German-designed for supreme optical quality!




More About Astronomik H-Alpha 6 nm CCD Filters



Designed to work with optical devices as fast as f/3.5, the Astronomik H-Alpha 6 nm Filter is an exceptionally narrow emission-line filter for CCD imaging applications only, not for visual or solar operations. This narrowband filter simultaneously lets h-alpha light from emission nebulae be transferred through to your sensor while completely obstructing the rest of the spectrum.



This Astronomik H-Alpha Filter has an FWHM of 6 nm, making it optimal for presenting maximum contrast between objects that give off h-alpha light such as emission nebulae, and the airglow background. While the 12 nm provides functionality analagous to the 6 nm, the latter offers higher contrast gain due to its reduced FWHM. As a result, some background stars will be dimmed or won't appear at all in the final image. This can be avoided simply by using both the 6 nm and 12 nm filters at the same time, allowing for maximum contrast in h-alpha objects while maintaining the visibility of the background stars in the resulting image.



Given that the Astronomik 6 nm H-Alpha CCD Filter completely suppresses the main offenders of light pollution, mercury (Hg) and sodium (Na) emissions lines, it makes for an excellent filter for use in a light-polluted environment.



Please note this filter must NEVER be used for solar observing or imaging. Doing so will cause permanent damage to your eyes.

Description
Description

Astronomik H-Alpha 6 nm CCD Filter - 27 mm Round

  • This Astronomik H-Alpha CCD Filter comes in a 27 mm round configuration
  • Designed with the highest technical standards in mind to enable the superb optical performance desired for imaging deep sky objects
  • Simultaneously allows light from H-Alpha sources to be transmitted while blocking IR along with almost the complete balance of the visual spectrum
  • Roughly 6 nm FWHM bandwidth
  • All unwanted light pollution is blocked, making this filter optimal for imaging supernova residue as well as planetary nebulae
  • German-designed for supreme optical quality!


More About Astronomik H-Alpha 6 nm CCD Filters

Designed to work with optical devices as fast as f/3.5, the Astronomik H-Alpha 6 nm Filter is an exceptionally narrow emission-line filter for CCD imaging applications only, not for visual or solar operations. This narrowband filter simultaneously lets h-alpha light from emission nebulae be transferred through to your sensor while completely obstructing the rest of the spectrum.

This Astronomik H-Alpha Filter has an FWHM of 6 nm, making it optimal for presenting maximum contrast between objects that give off h-alpha light such as emission nebulae, and the airglow background. While the 12 nm provides functionality analagous to the 6 nm, the latter offers higher contrast gain due to its reduced FWHM. As a result, some background stars will be dimmed or won't appear at all in the final image. This can be avoided simply by using both the 6 nm and 12 nm filters at the same time, allowing for maximum contrast in h-alpha objects while maintaining the visibility of the background stars in the resulting image.

Given that the Astronomik 6 nm H-Alpha CCD Filter completely suppresses the main offenders of light pollution, mercury (Hg) and sodium (Na) emissions lines, it makes for an excellent filter for use in a light-polluted environment.

Please note this filter must NEVER be used for solar observing or imaging. Doing so will cause permanent damage to your eyes.

Specifications
Specifications
Model Number HA6-27
Single Filter, Set, or Accessory Single Filter
Filter Type H-Alpha
Filter Size 27 mm
Filter Shape Round
Filter Insert Style Drop-In
Filter Bandpass 6 nm
Filter Optical Thickness 1 mm
Warranty Ten (10) Years
What's in the Box?
What's in the Box?
  • Astronomik H-Alpha 6 nm CCD Filter - 27 mm Round
  • Plastic Storage Case
  • Astronomik H-Alpha 6 nm CCD Filter - 27 mm Round
  • Astronomik H-Alpha 6 nm CCD Filter Transmission
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