William Optics 90mm Two Ring Mounting Set for 80mm Refractors - Black

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William Optics 90mm Two Ring Mounting Set for 80mm Refractors - Black

William Optics 90 mm Mounting Ring Set

The William Optics felt-lined 90 mm Telescope Mounting Ring Set is perfect for the Megrez or 80 mm Zenithstar. It is supplied with five threaded holes (external imperial threading 1/4x20; internal M6 metric threading) for mounting on most dovetail plates and WO dovetail plates. The same hole pattern exists on top to fit additional accessories.

These solid aluminum rings are black anodized, and have large knobs that are easy to adjust in the dark. A worthwhile investment if you want the best out of your GEM or Alt-az mount. These solid rings will keep your telescope always in perfect alignment. A telescope is only as performing as the mount and rings it comes with: saving on rings is not always a wise choice!

William Optics 90 mm Mounting Ring Set Features

  • Very elegant, anodized black version ideal for ZenithStar scopes including the new ZS80IIED.
  • Nice, comfortable knobs with teflon paint protection on locking end.
  • Felt-lined to protect even the most delicate telescope finish.
  • Two hexagonal metric M6 mounting screws provided.


OPT Product Number: WO-M-M80R-B



Free ShippingYes
Ring Size 5"
Ring Size3.1" to 5"
Warranty2 Year Warranty
Customer Reviews
5.0 Based on 2 Reviews
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Eddie P.
United States
Great products

These rings are solid, versatile, and attractive. No regrets.

Shev W.
William Optics 80mm refractor tube rings

Fantastic service by OPT! Tube rings are slightly thinner in construction than I expected but overall, great quality and finish. Thanks for sending the item so fast to Australia.