William optics 2 Inch Dielectric Coated Diagonal with CF Body

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
CF Body