Astronomik UHC-E - Economy UHC Filter - 1.25" Round Mounted

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Astronomik UHC-E - Economy UHC Filter - 1.25" Round Mounted
Item # AK-UHCE-1
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  • See more deep-sky by addig this reasonably priced UHC-E (E stands for Economy) filter to your arsenal.
  • The Astronomik UHC-E Filter dials in at 45nm FWHM, and has durable coatings that resist scratching.
  • 1.25" Threaded Fitler Cell is meant for visual observing.
  • The Astronomik UHC-E Economy Filter is a better choice for telescopes with less than 6" of aperture when compared to the higher transmission Astronomik UHC filter... you'll see more stars with the UHC-E!


Astronomik 1.25" Economy UHC Filter

The Astronomik UHC-E filter is THE budget filter for deep-sky observation of emission nebulae and comets under light polluted skies. It’s particularly suitable for small scopes. The UHC-E Filter increases contrast of emission nebulae and comets and blocks the light of typical streetlights as well as airglow. It is best suited for telescopes up to 5" / 125mm.

The Astronomik UHC-E filter provides a FWHM of 45nm and blocks the light of typical streetlights (e.g. sodium and mercury vapour) as well as airglow. Thus it increases contrast between your target and the night sky. The contrast enhancement is less than that of the Astronomik UHC filter, but at the same time the transmitted amount of starlight is greater. It's therefore better suited to smaller telescopes. As the UHC-E filter passes a spectral line of Carbon (due to the higher FWHM) it opens up the possibility of comet observation, observation of Jupiter’s clouds, easier resolution of Double Stars and photography under light-polluted skies with DSLRs and other cameras.

If you use a telescope with an aperture larger than 5", we suggest the use of the standard UHC-filter because of its greater contrast enhancement capabilities. If you use a telescope larger than 8", you can try the Astronomik OIII filter for even better results when observing specific nebulae.

Astronomik 1.25" Economy UHC Filter Features

  • Maximum transmission of 94%
  • Full width at half maximum 45nm
  • Transmission range 480nm to 525nm and 645nm+
  • Parfocal with other Astronomik filters
  • Glass thickness: 1mm
  • Completely resistant against high humidity, scratches and aging effects
  • Diffraction limited, the filter will not reduce the optical performance of your telescope!
  • Astronomik filters are delivered in a high-quality, long lasting, filter box.
Astronomik Product Number: UHCE-1
Additional Information

Additional Information

Manufacturer Astronomik
Type of Filter Contrast Booster
Filter Usage Imaging, Visual
Single or Set? Single Filter
Filter Size 1.25"
Filter Shape Round
Filter Mounted? Mounted
Warranty 10 Year Warranty
Peak Transmission Maximum transmission of 94%
Included Items

Included Items

  • Astronomik UHC-E Filter in 1.25" Cell
  • Plastic Storage Case
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