1.25 Inch Diagonal Mirror: Compatible with 1.25in eyepieces and telescopes. Designed specifically for refractors telescopes and not suitable for reflector telescopes.
90 Degree Angle: The 90 degree diagonal mirror, when used with a refracting telescope, allows for upright images. Although left right reversed, it does not affect astronomical observations.
Fully Coated Lens: Fully coated lens come with dust cover, keep your lens clean for superior image fidelity.
Easy Installation: The refractor telescope diagonal mirror is easy to install and use. It inserts into the telescope with a 1.25in end and secures the 1.25in eyepiece with a screw.
Durability: 90 degree zenith diagonal mirror is constructed of metal, plastic materials, sturdy and not easy to damage.