Canon 814XL - Manual (Page 36)

Zooming
The image in the viewfinder continuously
changes as the zooming ring is rotated although
the focus will remain the same. This is called
“zooming”, and is used to change the focal
length. It can be also used for special shooting
effects. Both power and manual zooming are
possible with this camera.
Power Zooming
When the power zooming switch is pressed
zooming will automatically start. When 'T' is
pressed, the focal length changes to telephoto
making the image larger. Pressing 'W' will
change to shorter focal length giving a wide
angle view. The former operation is known as
zoom-up and the latter as zoom-back. Zooming
time is about 5 seconds. Power zooming makes
the zooming operation quite smooth. Power
zooming cannot be operated past the limits of
either range.
Manual Zooming
Manual zooming is performed by rotating the
manual zooming ring. This can be used to ad­
just the focal length or change the picture
image and framing, as well as to vary the zoom­