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Zoom lenses: Taking the kind
of photographs you want means having the right lenses. By choosing carefully, you
can cover almost every shooting possibilities with only a couple of zoom lenses.
Zoom lenses offer the great convenience of being able to compose your shot in the
viewfinder. This means you have a lot less equipment to carry around with you and
you won't have to bother constantly changing lenses, either.
Wide-angle lenses and wide-angle zoom lenses present many distinct advantages. They
are an obvious benefit when you are shooting in a tight space and can't step back
to get more elements in the picture. They also provide a maximum amount of depth-of-field
and are good for subjects that require everything from front to back be sharply in
focus. Wide-angle and wide-angle zoom lenses also let you explore the strong sense
of exaggerating perspective they offer.
STANDARD ZOOM LENSES: The standard zoom lens is probably the single most popular
lens being used today. The advantages are obvious. With a standard zoom lens, you
can quickly shift the angle of view and the amount of magnification. This let you
compose in the viewfinder and try out various alternatives until you decide which
you like best. Moreover, with a standard zoom lens, you usually have three or four
most commonly used focal lengths - wide-angle, normal and short telephoto - always
available.
This means you can go out carrying only one lens instead of three - a real weight
saving you'll soon learn to appreciate when you're out there in the fields or exploring
city streets.
TELEPHOTO ZOOM LENSES: Telephoto lenses are essential for sports and nature
photography. Photographing wildlife, for instance, almost always requires shooting
with a telephoto lens. In fact, any time when you can't physically get close enough
to your subject, a telephoto lens is the obvious choice. Short telephoto lenses also
make good portrait lenses because the resultant perspective is flattering and you
can stand back so your subject wonít become too tense. Telephoto lenses can be heavy,
too, so a zoom telephoto lenses is a good choice since it coverts a wide range of
shooting uses.
FISHEYE AND SUPER WIDE-ANGLE LENSES: Extreme wide-angle lenses are useful
for shooting in a tight space but they also provide unusual properties that are interesting
to explore. Depth-of-field is almost infinite, for one thing but distortion can be
a problem with fisheye lenses because the edges of the frame seem curved. Learning
how to compensate for this -- and even take advantage of it and make the quality
itself a part of your composition -- is the best way to deal with it. Fisheye lenses
also offer an extreme sense of perspective distortion that can result in intriguing
images.
MACRO LENSES: Macro lenses are designed specially for macro photography. But
they can also be used for general photography. The optical elements used in Macro
lenses are almost flat, spherical types, ensuring images with higher definition when
shooting close-up photos over that of conventional lenses. What type of photography
is classified as macro photography?
Any subjects where the image size ranges from 1:2 to 3x life-size are defined
as macro photography. Anything higher than 3x is known as photomicrography. Life-size
(1x) means that the size of the subject in the 35mm frame is the same size in real
life. A 2x magnification means the image on film is twice the size of the actual
subject while a 0.5x life-size (1:2) means the image recorded is half the size of
the actual subject.
Canon offers three high-performance macro lenses for extreme close-up shooting. They
are the Compact EF 50mm f/2.5, EF 100mm f/2.8 and the EF
180mm f/3.5L USM. The 50mm lens focuses down to 1:2 life-size image on its
own. When combined with the Life-size Converter EF, close-up shooting is possible
from 0.26x to 1x. Both the 100mm and 180mm lenses can focuses down to 1:1 (1x) magnifications
without the need of a converter. The 180mm lens can also be used with Extender EF
1.4x and 2x to achieve magnification ratios of 1.4x and 2x respectively.
Over the next page is a gallery of thumbnail pictures. Surfers of this website can
click into them to see the larger images that were taken with the various EF lenses
showing how subjects can be turned into dramatic images with a little imagination,
taking into considerations the fundamentals of photography and the three questions.
I will leave it to the enthusiasts to guess what type of focal lengths (fisheyes,
wide-angles, macros or telephotos) that were used to create these photos.
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