This set contains the following items:
- William Optics 2" Dielectric Star Mirror Diagonal for Refractors
- William Optics SCT Thread Adapter for 2" Diagonal
If what you are looking for is the highest achievable brightness, contrast and sharpness during critical observations with high-end instruments, WO 90-degree 2" mirror Dielectric star Diagonal is your choice. A premium product at a discounted price! To use the refractor diagonal with an SCT telescope, simple unscrew the 2' barrel from the diagonal body and screw on the included SCT adapter. One diagonal does double-duty on both types of telescopes!
Top-Notch Performance and brightness
• Aluminum side plate and Ultra high dielectric 99% reflectivity
• Precision 1/10 lambda surface with 10mm-thick mirror
• 2"-1.25" adapter with brass clamping ring included
• Accurate design guarantees constant alignment. No further alignment needed.
• Barrel threaded to fit a variety of 2" (48mm) filters
• Weight: 480g