Canon RF 28mm F2.8 STM Instructions Manual page 2

Thank you for purchasing a Canon product.
Canon RF28mm F2.8 STM is a wide lens for
use with EOS R series cameras.
"STM" stands for Stepping Motor.
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Conventions used in these instructions
Warning to prevent lens or camera malfunction
or damage.
Supplementary notes on using the lens and
taking pictures.
Camera Firmware and Camera
Applications
Please use the latest versions of firmware and
applications with the camera in use. For details on
whether the firmware and applications in use are the
latest version or not, and for details on updating them,
please check the Canon website.
If the camera's* firmware is not a compatible
version, the following limitations will apply.
Magnified view functionality is not available.
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In some cases, the camera malfunction may
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occur.
* Applies to the following camera models:
EOS R and EOS RP
ENG-1