William Optic 2 Inch Dielectric Coated Diagonal

If what you are looking for is the highest achievable brightness, contrast and sharpness during critical observations with high-end instruments, the WO 90° 2 inch mirror Dielectric star Diagonal is your choice. A premium product at a discounted price!

Technical specs:

• Ultra High Dielectric 99% reflectivity
  
• Precision 1/10 lambda surface with 10mm-thick mirror.
  
• 2"- 1.25" adapter with brass clamping ring.
  
• Inside diameter (48mm): threaded to fit a variety of filters.
  
• Weight : 470 g