Astromania 2" Color/Planetary Filter for Telescope - #23A Light Red - Bundle with - 2" Diagonal 90° Mirror with 93% Reflectivity

Astromania's 2" mirror diagonal is an excellent alternative to higher priced diagonals for those on a budget or just getting started in the 2" format. The 2" diagonal features dielectric coatings with 93% reflectivity across the visible spectrum and a 1/10 wave mirror. The all metal diagonal body is CNC machined. The combined result is a superb diagonal offering excellent mechanical and optical quality at a great price. Star diagonal is the term commonly associated with 90°mirror diagonals such as this, which let you view objects that are at a 90°angle from the direction the telescope is pointing. This allows quite comfortable viewing when the telescope is at or near the zenith. Upgrading your diagonal and switching to 2" eyepieces is one of the best investments you can make in your telescope. The wider diagonal captures more of the telescope's light cone, perfect for viewing faint, deep sky objects like nebulae and galaxies.

• 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 sturdy 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
• Metal filter cell threads directly into the 2- inch barrel of your telescope eyepiece
• Especially useful for large aperture telescopes through which the light of the Moon can be extremely overwhelming