Astromania 2 Inch Star Diagonal 90-Degree Mirror with 93% Reflectivity Dielectric Coatings - Fully Metal for Refracting Telescope Eyepiece Lens for Astronomical Visual Astrophotography

The 2 Inch Diagonal Telescope allows you to take advantage of the wider field of view provided by 2 inch telescope eyepiece; enjoy better views through your telescope with this premium diagonal featuring diffraction-limited optics and dielectric coatings Clear and Bright Image: The 2 diagonal features dielectric coatings with 93 percent reflectivity across the visible spectrum and a 1/10 wave mirror for bright and true images; dielectric coatings are more durable than regular or enhanced aluminum coatings 2 Inch Diameter: It fits all rear cells of Schmidt-Cassegrain telescopes equipped with a big 2 inch focuser and can use with refractor telescopes with not included SCT adapter which you can find in our store 90 Degrees Design: Associated with 90 degree mirror diagonals which let you view objects that are at a 90 degree angle from the direction the telescope is pointing; which can provide you with a better observation experience during visual observation Excellent Aluminum Materials: It is constructed from aluminum alloy; which significantly enhances the 2 Inch star diagonal longevity; improved attachment design features a brass clamping ring which does not mar and provides a more secure connection