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Wide-angle Realism
Wide-angle lenses offer far more than just wide viewing angles. These lenses
are useful for keeping both subject and background in focus while maintaining a realistic
perspective. While offering fewer dynamic effects than theri super-wide-angle counterparts,
these lenses balance a wide viewing angle and a feeling of depth to achieve realistic
images. Despite the deep depth of field offered by wide-angle lenses, you can still
create shots where the foreground is sharp and background is blurred. Opening up
the lens aperture fully and moving in close to the subject will produce this effect.
By closing down the aperture you can bring both near foreground and distant background
into sharp focus. These flexible features are the special attractions of wide-angle
lenses.
Wide-angle lens line-up
EF24mm f/2.8 d | EF28mm f/1.8 USM | EF28mm
f/2.8 | EF35mm f/2 | EF24mm f/1.4L USM |
EF35mm f/1.4L USM | |
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 A wide-angle lens reputed from its wide range of application and ease
of use. Like the EF 20mm f/2.8 USM, an originally-designed near focusing optical
system moves the rear lens group internally to focus the subject and provide a floating
effect for maximum aberration compensation. Lens drive control is carried out by
a high-precision cam-type rear focus system which corrects astigmatism at close shooting
distances and realizes sharp, stable picture quality throughout the focus range.
High-speed, high precision autofocusing is also realized.
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 This
is a large aperture, wide-angle 28mm lens that provides impressively natural delineation
and beautiful shading. The optical system employs a replicated aspherical lens element
suited to the large aperture. This makes the lens compact and minimizes spherical
aberration to produce sharp, high image quality. A flare-cut diaphragm installed
behind group 1 blocks unwanted light to ensure highest contrast. The closest focus
distance, 0.25 m/0.8 ft, is the shortest in its class. Retrofocusing and ring USM
provide silent, high speed AF. Operation is enhanced by the inclusion of full-time
manual touch-up focus which can be used in the AF mode and by the non-rotating front
lens group.
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 A standard wide-angle lens featuring compact size and light weight for
superior portability. Incorporation of a glass-molded aspherical lens element enables
use of a simple yet effective 5-element, 5-group lens construction. This results
in an extremely compact, lightweight optical system which achieves super-fast autofocusing
with an extension type focusing system. The small number of lens elements ensures
sharp, high-contrast image quality. Distortion is virtually nonexistent, making the
lens ideal for architectural photography and scenes containing straight lines.
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 A
large-aperture, compact, wide-angle lens popular with veteran photographers as an
all-around, general-use lens. Utilizing a new design, an f/2 maximum aperture on
a par with standard lenses is achieved with a minimal 7-element., 5-group construction.
This provides an easy-to-carry compact size in addition to superb image performance.
Ghosting and flare are minimized fro sharp, high-contrast images. A simple extension
type focusing system is employed with design considerations made to ensure well-corrected
curvature of field. Another feature is a minimum focusing distance of 0.25m/0.8 ft
- the shortest distance in its class.
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Canon expands its line-up of wide-angle L-series lenses with the new EF 24mm f/1
.4L USM, a modern update of a classic FD system lens with even better performance
than the original. This is the first L lens to feature both the UD and aspherical
lens elements. The system is designed to provide excellent optical performance appropriate
for both large aperture f/1.4 and L lenses. The UD lens, which is located in the
fifth position, suppresses the occurrence of lateral chromatic aberration, a common
problem with wide-angle lenses. It also reduces blurring of colors on the edge of
the subject to achieve high resolution and contrast. A replicated aspherical lens,
in position nine, compensates for distortion and spherical aberrations. The adoption
of a floating mechanismachieves consistently high image quality, from the minimum
distance of 0.25m to infinity. Ring USM and a rear focus system combine to provide
quick and quiet autofocusing. Superior ease of use features includes full-time manual
focusing even in the AF mode, a nonrotating filter thread and a detachable bayonet-mount
petal-type lens hood.
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This 35mm wide-angle lens features a brightness of f/1.4, the largest aperture in
its class, and the superior natural delineation only possible with an L series lens.
It uses Canon's advanced floating mechanism and a ground aspherical lens for the
ninth element that achieves extremely sharp, distortion-free, superb picture quality
from infinity to close shooting distances. With Ring USM powered rear focus, autofocusing
is silent and fast. The wide, full-time manual-focusing ring provides a comfortable
operating feel.
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