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Not For Resale – Free Download at http://www.joe-chan.com/manuals
Tight framing and the bright
colors provide a symmetry of
balance to this beach scene.
Choice of a wide aperture and
the telephoto's shallow depth of
field throw the white-capped
waves in the background out of
focus to emphasize the subject.
FD75— 200mm f/4.5, 1/250 sec. at f/5.6 IS064
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Suspended in space and time, this modern-day FD85-300mm f/4.5, 1/500 sec. at 1/5.6, IS0 64
Icarus obviously has no qualms about flying too
close to the sun. The bright sunshine glistening on
the wings and pilot's helmet highlights detail and
allows a fast shutter speed to be used. The scene
is perfectly framed with the zoom lens at its
300mm setting.
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Two little girls in a park. Completely absorbed in FD35mm f/2, 1/125 sec. at f/8, IS064
their play, they are unaware that their picture is
being taken. Children are full of energy, never stay-
ing for more than a moment in one place. Knowing
this, the photographer used a medium wide angle
lens, stopped down for greater depth of field.
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The audience goes wild as the drum solo reaches FD200mm f/2.8, 1/500 sec. at f/2.8,
its climax. Shooting from the foot of the stage, the ISO 200 pushed to El 400
photographer uses a 200mm lens to bring the spot-
lit drummer right in close. He keeps his elbows
pressed tightly to his body to minimize camera
movement.
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Photography can help us unravel life's mysteries.
This cicada emerging from its cocoon will live only
10 brief days before dying. A half life size shot,
taken at a distance of 45mm with a 100mm macro
lens and Macrolite ML-1 flash. Single-head
illumination from the left.
FD100mm f/4 Macro, 1/60 sec. at 1/16, ISO 64
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Lens Basics
One of the greatest features of SLR cameras is their ability to accept a variety of interchangeable lenses.
The minute you mount a wide-angle lens onto your camera, you'll see the world from a broader perspective. And when you replace
your standard lens with a telephoto, the faraway comes in close, filling the frame beautifully. With different lenses to work with,
you'll be amazed at how much more you can express with your camera. But first, take some time to learn the basics behind lenses.
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purpose lens:
it focuses precisely on whatever it
chooses. Interchangeable lenses make
it possible for the photographer to
ability. That's why
Canon provides almost 60 different
changeable lenses for just as
many different applications. Standard
pective which closely approximates
tography in
light
outdoor scenes possible. But for the
a soaring
bird, or the minute details of an insect's
wing
standard lenses won't suffice.
Distant subjects require telephoto
bjects almost too
small to see call for macro lenses.
When a broad field of view is the
angle lenses accomplish
the task. Near or far, great or small,
different lenses are needed for
Nearing Human vision or surpassing it: the interchangeable lens.
Zoom Lenses
The human eye is the all-
come close to duplicating — even surpassing — this cap
inter-
lenses give a natural-looking pers-
human vision. These have large apertures, which make pho
dimly lit rooms as well as low-
really exceptional shot —
—
lenses, whereas su
target, wide-
attention-getting pictures.
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Wide-angle and super wide-angle lenses
Super telephoto lenses
Standard lenses Telephoto lenses
Macro and special lenses Other lenses
9
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Take in a little, or a lot — Angle of view.
If you're familiar with photography, you probably already know
that focal length governs angle of view. If taken from the same
position, longer focal lengths produce larger images, whereas
shorter lenses provide broader angles of view. But there is
more to angle of view than this. Look at the two pictures below
made with telephoto lenses, a 100mm and a 200mm. The girl
clearly becomes the main point of attention. Notice how her
personality is easily conveyed in the telephoto pictures. With
the 28mm lens, on the other hand, the scene takes on quite a
different feeling. The girl harmonizes with the background, and
the shape of the windows and railing takes on more importance
in the picture. In other words, telephoto lenses are ideal when
you'd like to emphasize or bring a subject in closer. Wide
angles are the choice when you want to give the subject's background equal importance. A zoom lens is particularly handy
here because it lets you choose between wide and narrow
angles without changing position or lens.
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Wide angles for an exaggerated sense of depth; telephotos for flatness
—
Perspective.
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Field or angle of view is not the only thing a photographer has
to consider. Perspective, or the sense of depth, controls the
spatial relationship between one subject and another. In the
pictures below each focal length tells a different story. At
28mm, 50mm, 100mm, and 200mm, the camera was moved so
that the subject's size remains the same in the images. The differences arise in the background. It seems to go on forever
when a 28mm wide angle is used, but looks very close to the
subject when shot with the telephotos. That's why the best way
to make a subject really stand out from its surroundings is to
use a wide-angle lens and shoot from a relatively short
distance. On the other hand, to create an image that appears
"flat," use a telephoto lens and stand back. Here again, a zoom
lens lets you get the perspective you want without having to
change lenses.
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How focal length and aperture affect focus range — Depth of field.
Depth of field, the range of sharpness in front of and behind the
subject on which focus has been set, is best understood by examining the photographs below. When the majority of subjects
appear sharp in a picture, the depth of field is great; when they
appear sharp within a narrow range, the depth of field is small.
Depth of field varies according to the focal length and brightness of the lens used and the distance from which the picture
is taken.
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• Depth of field is narrow at wide apertures,
greater when the lens is stopped down.
The four pictures at left were taken with the
same lens from the same distance, but at different apertures. As you can see, the more the
lens is opened, the narrower the depth of field
becomes; the more the lens is closed, the greater the depth of field. By using a large aperture
such as f/1.4, you can make the background and
foreground appear blurred, and by stopping the
lens down as much as possible (to f/16 or so), the
entire picture will be sharp. Blurred backgrounds
call attention to the main subject and deemphasize unneccessary details; sharp backgrounds tend to portray the subject in its overall surroundings. In other words, the aperture
should be varied to suit the mood and nature of
your subject.
• Depth of field is greater with wide angles,
smaller with telephotos.
The pictures to the right were taken from the
same distance, but with 28mm, 50mm, and
135mm lenses. An aperture of f/4 was used in all
cases. By comparing the enlargement of the
50mm shot with the 135mm shot, you can see
that depth of field is greater with the 50mm than
it is with the 135mm telephoto lens. Depth of
field is greatest with the 28mm lens. Thus, given
the same aperture, depth of field is deeper with
wide-angle lenses than it is with telephotos.
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