• [Reduce light pollution UHC filter] selectively block some harmful wavelengths of light, especially artificial light (including mercury light, sodium light) and natural sky gray light, so that the useful light emitted by the nebula can be efficiently transmitted, effectively improving the contrast of the nebula
• [Increase contrast] This filter darkens the sky background and improves the contrast of the image, so that even if you live in a lightly polluted area, you can clearly see the interplanetary nebula and most emission nebulae in the dark sky
• [Celestial observation and astrophotography] This filter helps to provide clear images and is an ideal telescope accessory for night sky observers and astrophotographers
• [1.25 inch filter] The filter can be easily connected to any telescope with 1.25" eyepiece. It is equipped with a solid filter housing for safe storage
• [High quality material] Made of optical glass and aluminum alloy, it can effectively reduce light pollution, and is very suitable for observing the night sky in cities or suburbs

Specifications:

• Item: 1.25 inch telescope eyepiece
• Material: optical glass, aluminum alloy