Description - Canon EF-S
17-55mm F2.8 IS USM Lens:
The Canon 17-55mm F2.8 IS USM Lens that offers image excellence on a par with Canon's extremely regarded L-series lenses. EF-S 17-55mm Lens has a large maximum aperture which combined with higher shutter speeds can minimize subject motion blur. Shallow depth-of-field separation of a subject from Canon EF-S 17-55mm IS background is much easier to achieve and f2.8 maximum aperture of EF-S 17-55mm USM Lens allows a bright finder and extremely precise focusing with f2.8 compatible AF sensors.
The internal stabilization OF Canon EF-S 17-55mm IS has a sharpness benefit equivalent to a three-stop faster shutter speed that making EF-S 17-55mm Lens outstanding in low light situations. Smaller and lighter than lenses of similar specifications, the Canon EF-S 17-55mm F2.8 has a 35mm equivalent focal length of 27-88mm and is compatible only with the EOS 30D, EOS 20D, EOS Digital Rebel XT and EOS Digital Rebel SLRs.
The Canon 17-55mm IS Lens becomes the fastest standard focal length zoom for EF–S mount cameras such as the new EOS 30D. Combining constant f2.8 aperture throughout the zoom range with Canon's latest 3-stop Image Stabilizer, Canon EF-S 17-55mm F2.8 delivers outstanding wide angle performance and framing flexibility in low light conditions. Specialist optics which is used in EF-S 17-55mm f2.8 IS such as UD glass and Aspherical elements help deliver exceptional clarity, sharpness, contrast and color accuracy.
To improve image clarity over the total image area, two Ultra-Low Dispersion glass (UD) elements are employed in Canon EF-S 17-55mm IS USM to eliminate secondary chromatic aberrations that otherwise reduce sharpness and introduce color fringing. To ensure crisp, high contrast from one corner of the frame to the other, two Aspherical Lens elements have been introduced in EF-S 17-55mm Lens to avoid spherical aberrations that can soften images, especially at wider apertures.
Superb optical quality by Canon EF-S 17-55mm IS with no change in aperture over the full focal length range allows photographers to set exposure at the widest aperture and concentrate on framing, without concern for adjusting shutter speed at longer focal lengths. The EF-S 17-55mm Lens employs an almost perfectly circular barrel aperture, helping create attractive, even background blur.
The Canon EF-S 17-55mm USM motor employs ultrasonic frequency vibrations to drive auto focus with speed and near-silent operation. The constant torque motor in EF-S 17-55mm IS Lens moves the focus group at high speed, stopping with precision, accuracy and without overshoot the instant the lens arrives at the correct focus point. Photographers can switch to manual focus instantly and at any time simply by moving the manual focus ring in Canon EF-S 17-55mm without first having to switch out of auto focus mode
When EF-S 17-55mm IS USM used in conjunction with Canon's range of EX Speedlite flash units and the internal flash of the EOS 350D, EOS 20D and new EOS 30D, the Canon EF-S 17-55mm passes distance information to the E-TTL II flash algorithm to improve flash exposure metering.
The EF-S 17-55mm Lens fits exclusively on those EOS cameras with an EF–S lens mount.
Canon EF-S 17-55mm IS Lens is widely sold lens.
With a constant f2.8 aperture throughout zoom range and a 3-stop Image Stabilizer, the EF-S 17-55mm f2.8 IS USM gives excellent performance and framing flexibility in low light situations.
Features of Canon EF-S 17-55mm F2.8 IS USM Lens:
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Wide angle zoom for EF-S mount bodies
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f2.8 aperture throughout zoom range
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3-stop Image Stabilizer
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Fast, quiet auto focus
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Super Spectra coating
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Circular aperture for pleasing background blur
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Passes distance information to E-TTL II
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Optional lens hood
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Specifications of Canon EF-S 17-55mm F2.8 IS USM Lens |
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| Focal Length & Maximum Aperture | 17-55mm 1:2.8 |
| Lens Construction | 19 elements in 12 groups |
| Diagonal Angle of View | 78°30' - 27°50' |
| Focus Adjustment | AF with full-time manual |
| Closest Focusing Distance | 1.15 ft. / 0.35m |
| Zoom System | 5-group helical zoom (front group moves: 27mm) |
| Filter Size | 77mm |
| Max. Diameter x Length, Weight | 3.3 in. x 4.4 in., 22.8 oz. / 83.5mm x 110.6mm, 645g (lens only) |
Kit
Contents
Canon EF-S 17-55mm IS USM Lens
Canon Front & Back Caps
Canon Instruction Manual
MTF Charts for Canon EF-S
17-55mm F2.8 IS USM Lens
Block Diagram of Canon
EF-S 17-55mm F2.8 IS USM Lens
Sample Pictures of
Canon EF-S 17-55mm F2.8 IS USM Lens
For more information about, Canon EF-S 17-55mm F2.8 IS USM website.
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Buy Canon EF-S 17-55mm F2.8 IS USM + Related Products RRP: RRP: £899.00£739.00Inc VAT 20% |
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