SVBONY Filter CLS 1.25" Deep Sky Filter for Astronomy Monocular Telescope Eyepiece Cut Light Pollution Visual & AstronomicalType: Monocular Model Number: CLS filter Brand Name: svbony model number : Filter for telescope astronomy: CLS telescope eyepiece 1. 25 telescope filter: Sleeve material: telescope eyepiece: 1. 25" CLS City Light Filter Broadband Filter: for Visual & Astronomical Photography filter: CLS filter telescope eyepiece : Filter Thread: M28. 5*0. 6 telescope astronomy: monocular binoculars Planetary Astronomy Camera: for Astronomy Telescope Eyepiece Material: