Desert Sky Astro Products
Quality Astronomical Accessories
OPTICAL TUBE RINGS
OD otical tubes, such as William Optics ZenithStar 80ED and
Megrez 90FD, Astro-Tech 80ED and Others.
  • Each ring has flat bosses on top and bottom with three 1/4-
    20 tapped holes each. One hole is centered on boss and
    the other two are 60mm apart centered to the center hole.
  • Thick felt protects your OTA from scratches.
  • Two 1/4-20 x 1/2" stainless steel caps screws provided per
    ring.
  • $65.00 per pair + $6.00 shipping within continental US
Contact information:
1625 E Villa Theresa Dr, Phoenix AZ 85022
Tel. (602) 550-4331
Email: desertskyastro@cox.net
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
tube.
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
    ring.
  • $60.00 per pair + $6.00 shipping within continental US
90mm ID Tube Rings