Canon 514XL-S - Manual (Page 62)

* Precautions
* If the microphone is hit, a harsh noise is re­
corded.
When you require hand-held shooting, use the
Canon Boom Microphone BM70.
* Sound is recorded 18 frames ahead of the cor­
responding picture frame, which means the last
18 frames, of one cut contains the sound of the
beginning of the next cut. It is advisable to
shoot one or two seconds longer than necessary
for editing. Be sure to use an editing machine
with a sound head so that you don't cut
necessary sound portions of the film.
* The Canon Sound Projector is highly recom­
mended for editing and re-recording of the film.
It can record background music or narration
along with projection, as well as recording
sound-on-sound.
/ Cleaning the Recording Head
Since film passes through the head, pinch roller
and capstan, these parts become dirty and the
picture image or sound quality can be affected. The
recording head should be cleaned at least after every
5 cartridges. A head cleaning stick should be used
for cleaning.
* Please be careful not to touch other parts with
the alcohol or the swab.