Canon ZOOM 8-3 - Manual (Page 18)

VIEWING, ZOOMING, AND FOCUSING
1. VIEWING...
The view is seen through the view­
finder eyepiece. As the viewing
is done through the lens, you ore
absolutely free from parallax
error. What you see through
the eyepiece is what you will
get on the film. You can view
the scene at full brightness at
all times. The field-of-view
changes as you turn the zoom­
ing ring. At the maximum magni­
fication, the focal length of the
__ lens is 42.5 mm ; at the minimum
8.5 mm. You can compose your
zooming range between 8.5 mm and 42.5mm from the
same position. The focus will not deviate.
Table below is for reference to the magnification changes.
The Canon zoom lens is so designed that at 20 mm it is
1 : 1 actual life size.
Focal Length 8.5 10 13 1 5 20 25!30!35 40|42.5
Magnification 0.4|0.5 0.7 0.8| 1 1.31.5,1.8 2 | 2.1
2. ZOOMING . . .
With your left hand fingers on
the zooming lever, rotate from
one extreme to another for
zooming. Deviation-free Canon
zoom lens will assure you of
constant focus throughout the
entire zooming operation.
Although the zooming gives your
picture powerful effect, do not
use it often. Too mony zoomings
will spoil your picture and make
it extremely annoying to watch.