1.25in 90° Diagonal Mirror For Refractor Cassegrain Telescopes Astronomic

Feature: \n 1. Standard 1.25 Inch Diameter: 1.25 inches 90 degree diagonal mirror fits for 1.25 inch focuser and eyepiece, works with refractor and catadioptric telescopes, not recommended for reflector telescopes.\n2. Stable and Reliable: 1.25 inches 90 degree diagonal mirror can be used with refrator telescope and makes the image upright. Though left and right reversed, not affect astronomical observation.\n3. With Dust Covers: Fully coated lens come with dust cove, keeping your lens clean for superior image fidelity.\n4. Wide 90 Degree Angle: You can view correct image from refractor telescope stand and just look down with a comfortable angle .\n5. Durable Material: 1.25 inches 90 degree diagonal mirror is made of aluminum alloy, ABS and plastic material, which is durable. \n\nSpecification: \n\nItem Type: 1.25 Inches 90 Degree  Diagonal Mirror\nMaterial: ABS, Plastic, Optical Lens\nInterface Size: 1.25 Inch\nViewing Angle: 90 Degrees\nWeight::