SVBONY 1.25 inches 90 Degree Dielectric Mirror Diagonal Fully Metal for Refracting Telescope Eyepiece Lens for Astronomical Visual Astrophotography

The 90% reflectivity flat mirror can reduce light loss and make the field of view clearer and sharper Standard 1.25 inches diameter can be used with 1.25 inches telescope accessories such as eyepieces and barlow lens 90 degree viewing angle; provide a more comfortable observation angle to observe the stars above the head Compatible with refractors and catadioptric telescopes; not suitable for reflector telescopes Body material is full metal; With dust cover always keep your lens clear prolong life