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Canon EF 28-135mm f/3.5-5.6 IS USM Zoom Lens

Canon EF 28-135mm f/3.5-5.6 IS USM Zoom Lens
 

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Canon EF 28-135mm f/3.5-5.6 IS USM Zoom

Features and Specs | Large Image

An unbeatable combination of zoom range, silent and fast USM autofocus, excellent optics and Canon's Image Stabilization technology. IS allows steady hand-held operation at shutter speeds up to two full stops slower than would normally be possible, and makes this a practical lens even in low-light situations. It's one of the most versatile lens choices in the entire EF line-up for the advanced EOS photographer.

Canon EF 28-135mm f/3.5-5.6 IS USM Zoom Key Features

Image Stabilization Technology
Canon has developed a series of truly unique lenses equipped with an Image Stabilizer (IS) function that let you capture photos that would otherwise be blurred due to camera movement, greatly expanding the range of handheld-camera photography. In many shooting situations where photographers are not allowed to use a tripod or flash, such as art museums and concert halls, Canon IS lenses are your ticket to sharper pictures.

Blurred pictures due to camera shake become more of a problem when taking pictures in dim light - at dusk, indoors, on a cloudy day. And the chance of getting blurred pictures is greater when using longer focal length lenses that magnify the image and any associated movement. To overcome these problems, Canon developed the world's first SLR lens with a built-in image stabilizer. Electronic signals emitted by vibration-detecting gyro sensors are used to move the image-stabilizing lens group in parallel along the optical axis, providing clear picture quality at all times. Actual shooting tests result in improvement equivalent to using a shutter speed two steps faster.

Ultrasonic Motor
Powered by Canon's exclusive Ultrasonic (USM) motor for autofocusing, the EF 28-135mm f-3.5-5.6 IS USM is silent in operation and very quick to focus, even in low-light conditions. There is virtually no whining noise as the lens focuses to distract the subject or draw attention to the photographer. Most important for the photographer in the field, the motor draws minimal power so the camera batteries last longer.
Aspherical Lens Element
Wide-angle lenses and fast normal focal-length lenses often suffer from an optical problem -- spherical aberration -- which causes an overall softening and optical "smearing" of the image. Canon has developed four different manufacturing technologies to produce Aspherical lens elements, which combat this problem. Aspherical optics, which have an extremely precise variable curvature of one or both sides of a lens element, also allow more compact lens designs and permit lighter lenses with fewer elements.
EF Lens Mount
In designing the EF lens mount, Canon engineers gave photographers a lot more than simply a way to quickly attach an interchangeable lens to a camera body. With the elimination of mechanical connections and the incorporation of an electronic interface between the camera and lens, Canon cameras have greater flexibility with regard to incorporating future technologies and future system upgrades. This fact has already been proven with a vast increase in AF speed, increased functionality such as predictive autofocus systems found in EOS cameras, auto-aperture tilt-shift (TS-E) lenses, the use of ultrasonic motors and the development of the Image Stabilizer lens.

The fully electronic mount system has none of the shock, operational noise, abrasion, play, lubrication requirements, slow response, diminished precision caused by lever operation, or design restrictions related to linkage mechanisms used to transfer data. Furthermore, operation and reliability are significantly improved. And, a lens operation self-test system, using the lens' built-in microcomputer, can even warn of malfunctions through the camera's LCD readout to help ensure high reliability.

Full-Time Manual Focus
Ring-type Ultrasonic Motor allows manual focusing without switching out of the auto mode, making this lens ideal for many photographic applications including sports, photojournalism, portraits, and landscapes.

Canon EF 28-135mm f/3.5-5.6 IS USM Zoom Specifications

Canon EF 28-135mm f-3.5-5.6 IS USM Zoom Lens
Focal Length
28-135mm
Maximum Aperture
1:3.5-5.6
Lens Construction
16 elements in 12 groups
Focus Adjustment
Inner Focusing System with USM
Closest Focusing Distance
1.6 ft.
Zoom System
Rotating type
Filter Size
72mm
Max. Diameter x Length
3.1" x 3.8"
Weight
1.2 lbs.

Canon EF 28-135mm f/3.5-5.6 IS USM Zoom

Features and Specs | Large Image
 
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