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William Optics Mounting Rings (Set of 2) - 90mm (3.54")

4.8 (5 Reviews) Read Reviews Write Review
Brand William Optics
Part Number M-M80R-B
Availability available

Product Info

Manufacturer Description

High quality black mounting rings made of solid aluminum anodized material makes your telescope looks outstanding!

These 90 mm, felt-lined mounting rings from William Optics are made out of solid aluminum, anodized in black, have white felt (not black as shown in some of the photos elsehwere), will fit most 90 mm OD tubes, and all William Optics 80 and 90mm telescopes. A worthwhile investment if you want the best out of your GEM or Alt-az mount!

  • Supplied with six threaded holes - three on the bottom and three on the top - for mounting on most dovetail plates and WO dovetail plate.
  • All six holes are M6 threaded and center-to-center distace between each pair of holes is 15mm
  • Felt-lined to protect even the most delicate telescope finish
  • Very elegant, anodized black version ideal for ZenithStar, GT, and Megrez telescopes, including the new GT81
  • Nice, comfortable, large knobs with teflon paint protection on locking end
  • Rectangular footprint of top and bottom of rings is 20mm wide x 50mm long. Thickness of rings is also 20mm
  • Weight of each individual ring is 15oz / 425g

Reviews

4.8 (Based on 5 Reviews) 100% of reviewers recommended this product.
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    1. Guest

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      Review by Jeffrey W.
      1517073495
      Jan 27, 2018

      4.0 Strong rings, odd 15mm spacing

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      Cons:

      Comments:

      There are three screw positions, spaced 15mm apart. Apparently, this was an old spacing for losmandy rails/bars, but you cannot really find any plates with that spacing anymore. So, you are pretty much limited to the central screws unless you make a custom plate (which is what I did for the top). Otherwise, this is a really nice set of clamps.

      Bottom Line: Would you recommend this item? Yes
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      This review was provided courtesy of AgenaAstro.com

    2. Guest

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      Review by Dave
      1508681167
      Oct 22, 2017

      5.0 Perfect for GT81

      Pros:

      Cons:

      Comments:

      I bought these to mount my William Optics GT81 20 anniv scope to a vixen plate, instead of the included shoe. Perfect fit, felt lined, easy to use, clamp mechanism is solid, correct size, WO logo, machining is very high quality. Recommended.

      Bottom Line: Would you recommend this item? Yes
      Was this review helpful? Yes / No

      This review was provided courtesy of AgenaAstro.com

    3. Guest

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      Review by Jason H.
      1495368934
      May 21, 2017

      5.0 Perfect Fit

      Pros:

      Cons:

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      I purchased these rings for a William Optics GT-81 and they fit perfect. They have a high quality finish and look great.

      Bottom Line: Would you recommend this item? Yes
      Was this review helpful? Yes / No

      This review was provided courtesy of AgenaAstro.com

    4. Guest

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      Review by scott b.
      1493879363
      May 3, 2017

      5.0 excellent rings

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      Comments:

      I wanted a good pair of mounting rings for my telescope and these are excellent. I have a pair of the cheaper ones that came with my Orion short tube 80 and did not want that for my other telescope. The WO are more expensive but the quality is far superior.

      Bottom Line: Would you recommend this item? Yes
      Was this review helpful? Yes / No

      This review was provided courtesy of AgenaAstro.com

    5. Guest

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      Review by Tyson M.
      1493080540
      Apr 24, 2017

      5.0 Rings for SW Equinox 80

      Pros:

      Cons:

      Comments:

      Looks great, much better than other cheaper rings available for this scope.

      Bottom Line: Would you recommend this item? Yes
      Was this review helpful? Yes / No

      This review was provided courtesy of AgenaAstro.com

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