Used Astronomik 2" UHC Visual Filter - UT-12108 -SOLD-

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  • $139.00
  • Regular price $199.00

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  • This is a used filter in like new condition
  • Transmission of nearly 100-percent of O-III and H-beta
  • Transmission of 96-percent of H-alpha
  • Ideal All-round Deep Sky filter even for small telescopes
  • Parfocal with other Astronomik filters
  • Diffraction limited, the filter will not reduce the optical performance of your telescope!


Used Astronomik 2" UHC Visual Filter - UT-12108 -SOLD-

UT-12108: The 2-Inch UHC Filter for Visual Use by Astronomik:

The Astronomik Ultra High Contrast filter is for visual deep-sky observation. It lets almost 100-percent of the radiation from both O-III lines and the H-beta line pass through. A second bandpass for the H-alpha line ensures that this radiation also reaches the eye, and scattered light from other wavelength ranges is also filtered out. Due to the strong reduction of the sky background, gas and planetary nebulas are visible with an unexpected abundance of detail. Because of the high transmission, the UHC filter provides enough light to successfully observe deep-sky objects with smaller telescopes.

The filters are optimized for use with focal ratios of f/4 to f/15. Unlike other filters on the market, loss of transmission and color displacement with the Astronomik filter occurs only on telescopes with extremely fast focal ratios of f/3 on up. Compared to the UHC filters sold by other manufacturers, the Astronomik UHC filter shows you more stars and more details in nebulas, and because of the high quality of the glass, you will see stars as small pinpoints.

Astronomik filters are in a class by themselves when compared to other filters made by Japanese and US manufacturers. The coatings are completely sealed and insensitive to moisture. They do not change with the years, but keep their transmission characteristics indefinitely. The coatings are so hard that is it not possible to scratch them by mistake. You would have to rub them with sandpaper to get even the finest of scratches! Due to these outstanding characteristics, Astronomik gives them a 5 year guarantee. Each filter will be sent in a useful protective case.


Astronomik 2-Inch UHC Filter for Visual Use Features:


ConditionLike New
Warranty90 Day Covered By OPT


  • Astronomik 2" UHC filter
  • Durable plastic storage box


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