Canon 814XL - Manual (Page 60)

Variable Shutter Control and Exposure Adjustment
The variable shutter control mechanism of this
camera has a 2-setting exposure adjustment
mechanism and fading mechanism. At the
setting, the opening angle is 220°, the shutter
speed is about 1/30 second at 18 fps. At the
setting, the shutter opening angle is 150° and
the shutter speed is about 1/43 second.
Therefore, the setting is more convenient
for use under dim light conditions.
System of Shutter Opening Angle/Fading
Making the picture image gradually darken until
it blacks out completely, or on the contrary,
making it become brighter from a complete
black-out condition until it can be seen normally,
is the technique called fading which is often used
in making movies. The former is called fade-out
and the latter fade-in. With this camera, the shut­
ter opening mechanism functions to perform
fading. The shutter opening angle is variable
from 150° to 0° (completely closed). The oper­
ation is performed by rotating the variable shut­
ter control dial. Fading controlled by the variable
shutter control dial is different from aperture-
controlled fading. It can be operated without
filters and fading time can be decided without
any problem.
33