Svbony 1.25'' UHC Ultra High Contrast Filter

Does a good job of cutting out light pollution. The sky is much more black than without it. However it does cause a halo. 

If you turn down the exposure it does go away or weakens up enough not to notice

Gain new enlightenment into the night sky by making your darks darker and your blacks blacker. This filter is a necessary component of any well stocked filter collection. With it, one can find both wonder and splendor in the darkness amid the paradox of the night and the logic of the light. 

Made of quality materials, lightweight, durable for years of use. This filter is perfect for observation of faint and low-contrast deep-sky objects.

Standard 1.25" barrel diameter thread, compatible for eyepieces of many telescopes and 1.25 nosepieces. Significantly reduces light pollution and increase contrast, great for city and suburban observation. Nice accessory for astronomy lovers.

Note:

the filters of SVBONY are not designed for sun observation. Do not look at the sun with SVBONY filter. You would be HURT if you fail to observe the warning.