Availability: In stock.
William Optics Quartz Dielectric Diagonal - 2 inch (with 1.25 adaptor)
Superlative 2 inch (with 1 1/4 inch adaptor) Quartz Dielectric 99% diagonal
Sensational performance
An absolute MUST for every Ultra Premium refractor
Suit Refracting or Cassegrain telescope (for astronomy)
The world's BEST diagonal
