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Orion 90mm Tube Rings for Orion 80/90mm Telescopes

SKU : OR-07370

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Product Details

  • 90mm ID Orion Telescope Tube Rings

    This cast-aluminum 90mm ID Orion Telescope Tube Ring set features quick-release, hinged clamp knobs and felt lining. Designed for use with Orion mounts, they fit some other brands of mounts as well. One of the two rings in the set has a 1/4"-20 piggyback camera adapter on it, the other has a threaded 1/4"-20 hole. The piggyback camera adapter can be removed for mounting an adapter plate for a guide scope on top of the tube rings. For use with Orion SkyView Pro or Atlas mounts, you will also need a dovetail mounting plate, #7383 (8" length) or #7385 (13" length). Set of two rings includes mounting bolts and washers. Inside diameter (ID) is listed. Choose the size that matches the outside diameter of your telescope tube. Outer diameter (OD) of the telescope should match inner diameter (ID) of rings. If OD of the telescope is a little smaller thna ID of the rings, that is OK; you can "shim" inside of rings with extra felt. Vixen dovetail plates are compatible with the Orion SkyView Pro mount. Orion Product Number: 7370

    Tube Ring Reference Table
    Item # Ring Inside Diameter (ID) Rings Fit
    7369 76mm/3.0" Observer 70 refractor
    7370 90mm/3.5" AstroView/Explorer 90, ShortTube 80, 80mm f/11 OTA
    7371 100mm/3.9" AstroView 100, SkyView Pro 100, 80mm ED, 100mm f/6 OTA
    7372 116mm/4.6" StarMax, Apex 102, SpaceProbe 3, AstroView 120/120ST, 120mm f/5.0 and f/8.3 OTAs
    7373 140mm/5.5" ShortTube 4.5, StarBlast
    7374 144mm Apex/StarMax 127, SkyView Pro 127
    7375 182mm/7.2" SkyView Pro 6, 6LT, 150mm f/8.0 OTA
    7376 235mm/9.25" SkyView Pro 8, Atlas 8, 203mm f/4.9 OTA
    7377 298mm/11.7" Atlas 10, 254mm f/4.7 OTA


  • specifications

    Free ShippingYes
    Ring Size 5"
    WarrantyOrion Limited Warranty

Product Reviews

Customer Reviews
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    John P.
    United States United States

    Rings and Things

    These rings fit as I had hoped. I needed to attach a small refractor OTA to a small mount so I can use it. These two rings are well made and a bit overkill. I ended up using only one of the two to reduce the total weight on the small mount. So, all is well and I will continue to enjoy my little telescope well into the future. Thanks!

    Wayne V.
    United States

    Another great buy

    The Rings were a perfect fit for the Orion ST 80 that I purchased. Now if I can just find the parts that will allow it to fit on the losmandy mount that I have on top of my C 11