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Key Features
- Adapts T-Mount Optics for Use on Canon RF-Mount Cameras
This Vivitar T-Mount Adapter allows you to mount T-mount lenses, telescopes, microscopes, or other optics to your Canon RF-mount camera body. When in use, automatic camera functions, such as autofocus and exposure control, will not be available and must be set manually.
More DetailsSee any errors on this page?
How do I adjust the focus length of the adapter ...
How do I adjust the focus length of the adapter so infinity focus is clear on my t-mount zoom?
The Vivitar T-Mount to Canon RF-Mount Adapter does not have a focus length adjustment.
Date published: 2025-04-22
Is this compatible with Eos r camera to connect ...
Is this compatible with Eos r camera to connect to Explorer scientific 80mm?
This is compatible with the EOS R and your Explore Scientific.
Date published: 2020-08-30
Do you focus with the focusing on the telescope ...
Do you focus with the focusing on the telescope I'm assuming?
Yes focusing is done on the telescope.
Date published: 2022-05-16
M42 or M48 thread??
M42 or M48 thread??
T mount is neither M42 or M48.
It is 42 thread like M42 but has a different thread pitch and they are not interchangeable.
Date published: 2025-11-11
Is the opening in this T-adapter an M42 or an M48 ...
Is the opening in this T-adapter an M42 or an M48 (ie, how wide is it)? Have some specialize equipment that uses M48 which I'd like to use if possible (assuming I get the EOS Ra).
This adapter is M42.
Date published: 2020-10-13