Canon EOS Rebel SL1 18-55mm IS STM Lens Kit - Manual (Page 213)

213
Movie Shooting Cautions
Recording and Image Quality
If you use a card with a slow writing speed, a five-level
indicator may appear on the right of the screen during movie
shooting. It indicates how much data has not yet been
written to the card (remaining capacity of the internal buffer
memory). The slower the card, the faster the indicator will
climb upward. If the indicator becomes full, movie shooting
will stop automatically.
If the card has a fast writing speed, the indicator will either
not appear or the level (if displayed) will hardly go upward.
First, shoot a few test movies to see if the card can write fast enough.
Still Photo Shooting During Movie Shooting
Regarding the image quality of still photos, see “Image Quality” on page
178.
Playback and TV connection
If you connect the camera to a TV set (p.262, 265) and shoot a movie,
the TV will not output any sound during the shooting. However, the
sound will be properly recorded.
Indicator
Do not hold the camera in the same posture for long periods of times.
Even if the camera does not feel too hot, prolonged contact with the same
body part may cause skin redness, blistering or low-temperature contact
burns. The use of a tripod is recommended for people with circulation
problems or very sensitive skin, or when using the camera in very hot
places.
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