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Astronomik UHC-E Filter - 50 mm Square - UHCE-50SQ

SKU: ASF-UHCE-50SQ

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 50 mm Square UHC-E Filter



For users of smaller telescopes who are on a budget, this Astronomik 50x50 mm Square UHC-E Filter is the perfect choice for deep sky observation of emission nebulae as well as comet viewing under heavily light polluted skies. Ideally equipped for up to 5" (125 mm) aperture instruments. The contrast between emission nebulae light and that of street lamp glow and the background sky is greatly enhanced with this filter.



Providing an FWHM (full width at half maximum) of 45 nm, this Astronomik UHC-E filter emphasizes the contrast between the object you want to see and the background sky, but in a reduced manner when compared to the UHC filter. However, a larger amount of starlight is transmitted. Therefore, the UHC-E filter works better for telescopes with smaller apertures.



Astronomik UHC-E Filter Highlights



  • This Astronomik 50x50 mm UHC-E Filter is best suited for use with smaller telescopes featuring apertures of up to 5" (125 mm)
  • Enhances the contrast between deep sky emission nebulae and the background sky when light pollution is severe
  • Comet observation becomes possible when the UHC-E filter passes a spectral line of Carbon due to its high 45 nm FWHM
  • 94% maximum transmission
  • 480 nm to 525 nm and 645 nm plus transmission range
  • 1 mm glass thickness
  • Parfocal with any other filter from Astronomik
  • Multi-layer coatings provide full protection against the effects of scratching, aging, and high humidity
  • Diffraction limited, this filter will not compromise your telescope's optical performance
  • All Astronomik filters are shipped with a long-lasting, supreme quality plastic storage case




Transmission Specifications



  • 94% transmission at 486 nm (H-beta)
  • 95% transmission at 496 nm (OIII)
  • 95% transmission at 501 nm (OIII)
  • 90% transmission at 656 nm (H-alpha)
  • Transmits from 465 nm to 530 nm as well as over 645 nm
  • Blocks all undesirable wavelengths
Description
Description

Astronomik 50 mm Square UHC-E Filter

For users of smaller telescopes who are on a budget, this Astronomik 50x50 mm Square UHC-E Filter is the perfect choice for deep sky observation of emission nebulae as well as comet viewing under heavily light polluted skies. Ideally equipped for up to 5" (125 mm) aperture instruments. The contrast between emission nebulae light and that of street lamp glow and the background sky is greatly enhanced with this filter.

Providing an FWHM (full width at half maximum) of 45 nm, this Astronomik UHC-E filter emphasizes the contrast between the object you want to see and the background sky, but in a reduced manner when compared to the UHC filter. However, a larger amount of starlight is transmitted. Therefore, the UHC-E filter works better for telescopes with smaller apertures.

Astronomik UHC-E Filter Highlights

  • This Astronomik 50x50 mm UHC-E Filter is best suited for use with smaller telescopes featuring apertures of up to 5" (125 mm)
  • Enhances the contrast between deep sky emission nebulae and the background sky when light pollution is severe
  • Comet observation becomes possible when the UHC-E filter passes a spectral line of Carbon due to its high 45 nm FWHM
  • 94% maximum transmission
  • 480 nm to 525 nm and 645 nm plus transmission range
  • 1 mm glass thickness
  • Parfocal with any other filter from Astronomik
  • Multi-layer coatings provide full protection against the effects of scratching, aging, and high humidity
  • Diffraction limited, this filter will not compromise your telescope's optical performance
  • All Astronomik filters are shipped with a long-lasting, supreme quality plastic storage case


Transmission Specifications

  • 94% transmission at 486 nm (H-beta)
  • 95% transmission at 496 nm (OIII)
  • 95% transmission at 501 nm (OIII)
  • 90% transmission at 656 nm (H-alpha)
  • Transmits from 465 nm to 530 nm as well as over 645 nm
  • Blocks all undesirable wavelengths
Specifications
Specifications
Model Number UHCE-50SQ
Single Filter, Set, or Accessory Single Filter
Filter Type UHC
Filter Size 50 mm
Filter Shape Square
Filter Insert Style Drop-In
Filter Optical Thickness 1 mm
Warranty Astronomik 10 Years
What's in the Box?
What's in the Box?
  • Astronomik UHC-E Filter - 50x50 mm Square
  • Plastic Storage Container
  • Astronomik 50 mm x 50 mm UHC-E Filter
  • Astronomik UHC-E Filter Transmission
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