Cameras with USB-C ports are often able to power the camera and/or charge the battery of
USB. While this is a convenient feature, this can sometimes cause connection issues during
tethering. Therefore, we always recommend turning USB Power Delivery / Charging OFF
during tethering in order to ensure the most stable connection possible. Canon R-Series
(mirrorless) cameras do not provide the ability to turn off USB Power / Charging. This limitation
is known to cause connection issues on some setups.
While Canon may address this issue in forthcoming firmware updates and/or future camera
models, it remains a potential issue for many users. In some cases, it is not an issue that will
arise immediately, but can emerge months after the initial use.
As a solution for this issue, we recommend that ALL Canon R-Series cameras be
connected via one of the following methods to avoid the known connection issue
described above:
TetherPro Optima 10G Cables (Recommended)
For USB-C computer ports
The TetherPro Optima 10G Cable lineup has been developed to support the fastest transfer speed available (10 Gbps) when using the latest USB-C cameras. Additionally, the cable is designed with dedicated data transfer to avoid potential issues associated with Power Delivery. The cable does not support Power Delivery and therefore will provide a steady connection for all USB-C cameras, including the Canon R-Series cameras. This cable line requires a USB-C port on the computer. The Optima cables are available in the following varieties and cable lengths:
TetherPro USB-C to USB-C, 31′ (9.4m), Straight to Right Angle Cable
For USB-C computer ports
Like the Optima 10G cables above, this cable was designed with dedicated data transfer and does not support Power Delivery. Using the TetherPro USB-C to USB-C 31′ results in fast and steady connection without the known issue described above. This cable supports USB-C 3.1 Gen 1, 5 Gbps transfer speed.
USB-A Cable
For USB-A computer ports
Power Delivery is not supported over USB-A connections. Therefore, using the TetherPro USB 3.0 to USB-C cable would prevent the issue described above and will result in a stable and consistent connection. If your computer has a USB-A port, this cable will allow you to connect your camera directly to your computer.
