Canon EOS 250D Advanced User's Manual page 226

Notes for Movie Shooting
Each time you shoot a movie, a new movie file is created on the card.
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The movie's field of view coverage for recording 4K, Full HD, and HD movies
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is approx. 100%.
Stereo sound is recorded by the camera's built-in microphones.
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If you connect the Directional Stereo Microphone DM-E1 (sold separately)
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to the camera's external microphone IN terminal (= 28), the external
microphone is given the priority.
Most external microphones equipped with a 3.5 mm diameter mini plug can
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be used.
The focus preset function is possible for movie shooting when using a (super)
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telephoto lens equipped with the focus preset mode, released in and after the
second half of 2011.
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