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  • neutral density filter - tones down moonlight for more comfortable observing

  • neutral image - the Moon retains its natural appearance

  • high contrast - discover thousands of craters and fine structures

  • for your eyepiece - fits onto any eyepiece with a filter thread


The Moon is too bright - tone it down a bit

The Moon can be so bright that you can easily read a newspaper by its light at night. But anyone looking through a telescope will note just how bright the Moon really is. It often irritates the retina and dazzles the eye in unpleasantly. No wonder - the full Moon is 25,000 times brighter than the brightest star in the night sky. So having a neutral density filter is definitely an 'ace up your sleeve' when observing the brighter lunar phases.


Filter with 25% light transmission

This filter is ideal for smaller and medium-sized telescopes up to a diameter of 150mm. The 25% light transmission reduces the brightness of the moonlight, allowing you to observe the Moon at any time - in comfort and without glare.


Polished glass for a clear view

You are purchasing a first class product with the Omegon Moon filter - a polished glass filter held in an anodised aluminium mount. The filter glass has been ground and stained throughout the entire glass volume. This avoidance of using a superficial coating means that it cannot wear out, even after many years of use.

Omegon Moon filter 25% transmission 1.25"

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