The Svbony 1.25"/2" polarizing filter is a premium anodized aluminum. Optical glass polarizing filter designed to reduce the amount of light entering the eyepiece and increase contrast and reduce glare for more detail .
1. Polarizing filters are made from optical glass, individually precision ground, highly polished
2. It allows maximum contrast of lunar detail, enhances the contrast of the moon and planets in photographic images
3. Progressively dim the view, increasing contrast for telescope eyepiece, generally not suitable for use in digital cameras with a high degree of automation