Desert Sky Astro Products
Quality Astronomical Accessories
Contact information:
1625 E Villa Theresa Dr, Phoenix AZ 85022
Tel. (602) 550-4331
Our optical tube rings are finely machined from 6061 Aluminum with
stainless steel hardware. These rings are hinged and have quick
release knobs for easy installation and adjustment on your optical
75mm ID Tube Rings
New Design, CNC machined!

tube, such as William Optics ZenithStar 66SD and , Astro-Tech
66ED and Others.
  • Each ring has flat bosses on top and bottom with one 1/4-
    20 tapped hole each. Hole is centered on boss.
  • Thick felt protects your OTA from scratches.
  • One 1/4-20 x 1/2" stainless steel cap screw provided per
  • $60.00 per pair + $6.00 shipping within continental US