Canon 514XL-S - Manual (Page 29)

A Setting the Filming Speed
^ There are three different filming speeds: 18
fps., 24 fps. and single frame for silent film. Both
18 fps. and 24 fps. are for sound movies, but
generally for ordinary movies, the 18 fps. filming
speed will attain good sound recording. The 24 fps.
filming speed is used in order to achieve best sound
and image quality. If filming speeds are mixed in
one film, the pitch at projection is changed so this
should be avoided. The filming speed can be set to
18 and 24 fps. by rotating the filming speed dial,
and single frame shooting can be set by the main
switch. The shutter speed for 18 fps. is about 1/30
sec, and for 24 fps. it is about 1/40 sec.
5 Shutter Release Lever
After setting the main switch to “R", depress
the shutter release lever to start shooting. This
shutter release lever has two steps. The first step is
to meter the light and for sound monitoring. The
second one is to start filming.