Brochure

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usa.canon.com/eos
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EF LENSES
Image Stabilizer OFFImage Stabilizer ON
Great images start with great optics. An SLR camera is often defined by the quality,
breadth and scope of its lens system. As such, Canon lenses alone are reason
enough to choose the EOS System. Combining some of the world’s most advanced
optical, microelectronic, and precision manufacturing technologies, EF lenses are
engineered in Canon’s laboratories, proven
in the field and beloved by generations
of photographers. With over
100 million lenses produced
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,
Canon EF lenses have proven
they are capable for a multitude
of photographic situations.
Optical Image Stabilizer
Canon Optical Image Stabilizer technology
makes handheld photography more practical
at slow shutter speeds, accommodating more
low-light shooting situations than ever before.
Camera shake typically occurs at shutter
speeds less than 1/ [focal length], resulting in
image blur. Canon Optical Image Stabilizer
technology uses miniature sensors and a
high-speed microcomputer built into the lens.
The sensors analyze vibrations and apply
correction via a special stabilizing lens group
that shifts the image parallel to the focal plane.
Motion blur is reduced, resulting in a sharper
image. With Optical Image Stabilization, it’s
like gaining up to four stops. Canon Optical
Image Stabilizer technology is built into many
Image Stabilization:
It Belongs In the Lens
Because every lens is different, different lenses
have different Optical Image Stabilizer needs.
• Reduces motion blur by counteracting camera shake during handheld photography
• With Optical Image Stabilizer in the lens, Canon can equip each Optical Image Stabilizer lens with
the stabilizer it needs
• Found on some telephoto lenses, Optical Image Stabilizer Mode 2 is especially effective when
doing panned shots
• With Canon Optical Image Stabilizer, the effects of the stabilization can be seen in the viewfinder –
the image is steadier, making composition more accurate
How the Image Stabilizer Works — The Optical Image
Stabilizer shifts a lens group in parallel to the focal plane.
When the lens jerks due to camera shake, the light rays
from the subject are bent relative to the optical axis,
resulting in a blurred image. Camera shake is detected
by two gyro sensors (one each for the yaw and pitch). The
gyro sensors detect the angle and speed of the camera
shake caused by handheld shooting. By moving select
lens elements according to how the entire lens is being
shaken, the image passing through the lens can be
steady and sharp when it hits the imaging sensor. The
figure on the extreme right shows what happens when
the lens is jerked downward. The center of the image
moves downward on the focal plane. When the Optical
Image Stabilizer lens group shifts downward, the light
rays are refracted so that the image center returns to the
Optical Image Stabilizer Units
center of the focal plane. Since image shake occurs
in both the horizontal and vertical directions, the
Optical Image Stabilizer lens group can shift vertically
and horizontally on a plane perpendicular to the optical
axis to counteract the image shake.
Optical Image Stabilizer
Parallel Movement Principle
1: No Camera Shake
2: Lens Front Shake Downward
Camera
Shake
3: Image-stabilizing group counteracting
downward camera shake
EF LENS TECHNOLOGY
Adam Jones
Explorer of Light
“
For two decades I’ve
used Canon EOS
lenses professionally –
they always deliver
the superior results
my clients and I
demand. No matter
what the situation,
EOS lenses allow me
complete creative
freedom, reliability,
and unsurpassed
performance.
”
©Adam Jones
photography, however, the image blur caused
by linear camera shake – when the camera
moves parallel to the subject – is more
pronounced. Optical Image Stabilizer is
designed to counteract rotational or linear
camera shake and works well for most camera
shooting situations. To help compensate for
linear camera shake, an acceleration sensor
determines the amount of shift-based camera
movement. Canon Hybrid Image Stabilizer
technology employs a highly sophisticated
algorithm that combines the feedback of both
the acceleration sensor and angular velocity
sensor (found in Hybrid OIS technology), and
moves the image stabilizer lens elements,
effectively compensating for both rotational
and linear camera shake. Hybrid IS enhances
the effects of Optical Image Stabilizer,
especially during macro shooting, which may
be difficult for conventional image stabilization
technologies.
Linear Camera Shake
EF and EF-S lenses, allowing for more movement
of the stabilizing lens group. Especially with
telephoto lenses, as the lens focal length
increases, the effect of shake and the degree
of correction needed to cancel it increase as
well. With the Optical Image Stabilizer in the
lens, Canon can equip each IS lens with a
stabilization unit optimized for the focal
lengths and optical characteristics unique
to that lens.
Hybrid Image Stabilizer
During normal shooting
situations, sudden camera
movement is rotational and can cause
significant image blur. During macro or close-up
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Refers to EF Lenses, EF-S Lenses and Cinema Lenses produced worldwide from 1987 to First Half of 2014.