Canon EOS M Instruction Manual page 19

Lens
After detaching the lens from the camera, put down the lens
with the rear end up and attach the lens caps to avoid
scratching the lens surface and electrical contacts.
Cautions regarding Prolonged Use
If you use continuous shooting, Live View shooting, or
movie shooting for a prolonged period, the camera may
become hot. Although this is not a malfunction, holding the
hot camera for a long period can cause slight skin burns.
About smudges adhering to the front of the
sensor
Besides dust entering the camera from outside, in rare cases lubricant from the Besides dust entering the camera from outside, in rare cases lubricant from the Besides dust entering the camera from outside, in rare cases lubricant from the
camera's internal parts may adhere to the front of the sensor. If visible spots still camera's internal parts may adhere to the front of the sensor. If visible spots still camera's internal parts may adhere to the front of the sensor. If visible spots still
remain after the automatic sensor cleaning, having the sensor cleaned by a remain after the automatic sensor cleaning, having the sensor cleaned by a remain after the automatic sensor cleaning, having the sensor cleaned by a
Canon Service Center is recommended.
About the lens mount
Periodically cleaning the camera's body and lens mount with a soft lens cleaning Periodically cleaning the camera's body and lens mount with a soft lens cleaning Periodically cleaning the camera's body and lens mount with a soft lens cleaning
cloth is recommended.
Handling Precautions
Contacts
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