Orion 20-Inch Twist-Tight Dielectric Mirror Star Diagonal, Black, Medium 40902

• This 2", 90-degree mirror diagonal features sophisticated dielectric coatings with highly efficient 99% reflectivity
• Twist-tight clamping mechanism grips inserted eyepieces more securely than typical thumbscrew-equipped diagonals - without scratches!
• Dielectric mirror coatings provide higher reflectivity for maximum brightness and contrast with more durability than enhanced aluminum coatings
• Machined and anodized aluminum housing features machine-threaded glare baffles for peak performance
• Nosepiece barrel is threaded to accept 2" Orion filters, and a step-down 2"-1.25" adapter is included

• Item Reference: B01LWVB3YQ 0759270409029 759270409029