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Simply align the M-Mount T-Ring with your camera's lens mount, push it in, and turn until you hear a click. This signifies that the robust bayonet flange has locked into place for a secure fit.
The T-Ring is crafted from machined aluminum and finished in black anodized for durability and style.
Yes, by pairing the T-Ring with a Celestron T-Adapter, you can transform your telescope or spotting scope into a large telephoto lens suitable for both terrestrial and celestial imaging.
Yes, the T-Ring features threads that are compatible with a wide range of camera adapters, including the Celestron T-Adapter.
The T-Ring is specifically designed for Canon EOS mirrorless cameras.
Review Summary
2026-01-27T09:00:11
Professional quality equipment that works the first time I would definitely recommend this to anyone
PAUL G.
2024-07-03T08:08:56
Works as expected!
JEFFREY D.
2022-12-26T04:42:33
Smooth installation. Works perfectly. The purchase was easy. Tracking was uncertain; I never was able to track the shipment accurately.
LUIS B.
2022-05-11T08:29:01
I STRONGLY dislike having to do reviews. I had a great transaction until I got a request for a review and reminders to fill it out.
LARRY M.
2022-04-15T09:44:47
Works great to allow use of my C90 spotting scope as a super long telephoto lens on Sony a6XXX camera.
BRUCE B.
2022-04-13T09:16:54
Is going to do what I need to do. Can?t to get some great pictures
FELIX A.
2022-01-26T15:24:06
Great delivery time and exactly what I ordered.
TAMMY H.
2021-10-08T08:32:42
Just the right part for my camera.
Ricky M.
2021-08-16T11:06:21
Well made, good fit to camera and nice finish. Just what I needed.
CRAIG H.
2021-06-25T08:38:00
It's a sweet ring of metal, not a donut.. don't try to eat it.
James W.
2021-06-01T08:32:48
Fits and works great!
THOMAS J.
2021-04-19T08:20:32
Celestron adaptors are rugged for the job. I am very happy with my purchases.
Ernest L.
2021-02-25T14:53:09
The alignment marking is subtle, but once you spot it the ring fits on the camera well.
Terry W.
2021-02-20T04:21:02
A simple yet invaluable device. It fit my camera perfectly. I was able to use the T ring which fits with the T adapter and take photos with my canon EOS Rebel T7 converting my Celestron telescope as a lens.
SHAWN K.
2020-09-23T15:10:00
T-Ring fits perfectly between my EOS camera and the telescope. For connecting an additional T-Adapter is required. The description on that t-Ring was not 100% clear to me.
Thomas S.
2020-08-18T19:27:42
The ring fits my camera well. It is study and made of good material.
DANIEL W.
2020-08-11T08:29:34
Bought this to connect my Nikon to a Celestron scope. Worked perfectly.
SCOTT H.
2020-08-07T11:28:13
Product functions fine. What else can you say about a ring.
Joseph W.
2020-08-05T20:56:04
Easier to mount the camera first to the T ring the attach T ring and camera to telescope. Works great
GREGG L.
2020-07-29T08:53:46
Very easy to use to get better pictures than a smart phone will produce
JOEL S.
2020-07-06T02:23:07
It fits my Nikon DLSR and was shipped quickly.
KEITH E.
2020-07-03T10:15:56
Works perfectly in adapting to my canon eos 5DM3. Took pics of the moon and they turned out really good.
Vinod C.
2020-06-11T08:45:04
Connect to camera perfectly!!
AARON C.
2019-12-12T19:12:27
Works perfect with my Nikon D750 camera.
BELA O.
2019-11-29T07:30:06
I love it , and the service/ help I received over the phone was freindly and informative. Adorama is my go to for photography equipment and advice.
LEONARD D.
2019-09-03T04:08:14
Picked this up with my Celestron spotting scope. fits my Nikon and give great wildlife pictures with the scope.
PETER G.
2019-08-14T11:46:02
Fit was perfect and started using my old telephoto lens right away.
Louis L.
2019-08-02T09:50:22
Performed as advertised
Jonathan W.
2019-06-14T12:02:12
This adapter worked perfectly to mount my Nikon camera to the Celestron telescope (with a T adapter). I am very pleased with this purchase from Adorama.
Richard B.
2019-03-20T11:37:18
Great addition
Doyle W.
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Browse our FAQ
M42-0.75
Canon M-mount for mirrorless cameras
Aluminum black anodized
2.56" (65mm)
0.39" (10mm)
1.76 oz (50g)
050234934077
Celestron Sony E-Mount 42mm T-Ring Adaptor #93408.
By BRUCE B.
Works great to allow use of my C90 spotting scope as a super long telephoto lens on Sony a6XXX camera.
Professional quality
By PAUL G.
Professional quality equipment that works the first time I would definitely recommend this to anyone
Bring your astrophotography to new heights with the T-Ring for Canon EF-M-Mount Cameras. This essential accessory is designed to enable you to capture stunning images through a telescope or spotting scope using your Canon EOS mirrorless camera.
The Celestron EOS M-Mount T-Ring, specifically designed for Canon mirrorless cameras, is easy to use. Simply align the M-Mount T-Ring with your camera's lens mount, push it in, and turn until you hear a reassuring click. This sound signifies that the robust bayonet flange has locked into place, ensuring a secure fit.
Once the T-Ring is attached to your camera, you're all set to connect your telescope. The telescope side of the T-Ring features threads that are compatible with a wide range of camera adapters, including the Celestron T-Adapter. The choice of adapter will depend on your specific photography requirements.
Crafted from machined aluminum and finished in black anodized, the Canon M-Mount 42mm T-Ring is both durable and stylish. The internal surfaces are blackened and glare-threaded to maximize contrast, while the ribbed surface ensures a secure grip during threading and unthreading. This T-Ring is compatible with M42 x 0.75 (T-Thread) camera adapters.
For both terrestrial and celestial imaging, pair your T-Ring with a Celestron T-Adapter. This combination transforms your telescope or spotting scope into a large telephoto lens, opening up a world of photographic possibilities. Depending on the optics you own, you can pair your M-Mount T-Ring with various adapters to achieve your desired results.
In summary, the T-Ring for Canon EF-M-Mount Cameras is a must-have accessory for any astrophotography enthusiast looking to leverage the power of their Canon EOS mirrorless camera.
https://www.celestron.com/pages/warranty
310-328-9560