Canon eos rebel t1i - Manual (Page 127)

127
Notes on Movie Shooting
Recording and Image Quality
At [1920x1080], the recorded frame rate is slower, so fast-moving
subjects or scenes may look a little jerky.
If a single movie’s file size reaches 4 GB, the movie shooting will stop
automatically. To start movie shooting again, press the <A> button. (A
new movie file starts being recorded.)
If the attached lens has an Image Stabilizer, the Image Stabilizer will
operate at all times even if you do not press the shutter button halfway.
The Image Stabilizer may cause the total movie shooting time or the
number of possible shots to decrease. If you use a tripod or if the Image
Stabilizer is not necessary, you should set the IS switch to <2>.
The camera’s built-in microphone will also pick up camera operation
sounds. If you do not want to record any sound, set the sound recording
to [Off].
Autofocusing during movie shooting is not recommended since it might
momentarily throw the focus way off or change the exposure. Even if the
AF mode has been set to [Quick mode], it will switch to the Live mode
during movie shooting.
If the movie shooting is not possible due to the insufficient remaining
capacity of the card, the movie recording size and movie shooting
remaining time (p.126) will be displayed in red.
If you use a card having a slow writing speed, the five-level
indicator might 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.
If you take still photos during the movie shooting, the movie shooting
might stop. If the still image recording quality has been set low, it might
be improved.
During movie shooting mode, certain Custom Function settings will be
disabled (p.183).
Indicator