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

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OR-7370
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Orion 90mm Tube Rings for Orion 80/90mm Telescopes

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

ManufacturerOrion
Ring Size 5"
Ring StyleHinged Ring
WarrantyOrion Limited Warranty

Customer Reviews

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WV
01/09/2019
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