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Canon EF-S 17-55mm f/2.8 IS USM Lens

Canon EF-S 17-55mm f/2.8 IS USM Lens

To meet user demands for a fast EF-S zoom lens, Canon has specially designed a lens with a large aperture of f/2.8 for select Canon Digital SLR cameras. The large circular aperture produces a shallow depth-of-field, creating background blur that draws attention to the photographic subject. The lens construction includes UD and aspherical elements, which deliver impressive image quality throughout the entire zoom range. Image Stabilizer lens groups shift to compensate for camera movement so that the image appears steady on the image plane, ensuring clear, crisp images, even in dim light. With a Ring-type USM, inner focusing and new AF algorithms, this lens achieves autofocus quickly and quietly, and with full-time mechanical manual focusing, manually adjusting the focus is possible even in AF mode.

Features

  • EF-S Mount Lens
  • 27-88mm (35mm Equivalent)
  • Aperture Range: f/2.8-22
  • UD and Aspherical Lens Elements
  • Optical Image Stabilization
  • Ultrasonic Autofocus Motor
  • Manual Focus Override
  • Truly Circular Diaphragm
  • Minimum Focus Distance: 1.2′
  • 77mm Filter Thread Diameter

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Additional Product Information
SKU: CanonEFS17-55. Categories: , , .

The EF-S 17-55mm f/2.8 IS USM Lens from Canon is a large-aperture lens compatible with APS-C format digital SLR cameras, and offers a versatile wide-angle to short telephoto zoom range. The focal length is equivalent to approximately 27-88mm in 35mm format and its constant f/2.8 maximum aperture is effective in low light throughout the zoom range. A wide maximum aperture also enables shallow depth of field control.
This lens features Canon’s optical Image Stabilizer technology, providing up to 3-stop compensation for image blur caused by camera shake at slow shutter speeds. This enables clear images, even in dim light. An ultrasonic autofocus motor (USM) provides fast and quiet AF action which is particularly important when shooting video and manual focus override allows precise manual focus at any moment, even in autofocus mode.
Designed specifically for digital photography, the lens has specially shaped lens elements and Super Spectra coatings to suppress ghosting and flare, which can be caused by reflections off digital camera sensors.

  • A fast, constant maximum aperture of f/2.8 is ideal for low light shooting, utilizing fast shutter speeds and for shallow depth of field control.
  • Optical image stabilization enables up to 3 shutter speed stops of blur compensation to create clearer images when shooting handheld and in low light situations.
  • Ring-type Ultrasonic Autofocus Motor (USM) provides quiet, fast, precise auto focusing and predictive tracking.
  • Features three aspherical lens elements (two types) as well as a UD glass element for reduced aberrations and high image quality at all focal lengths.
  • Optimized lens coating minimizes flare and ghosting prone to occur with digital cameras.
  • Internal focusing and new AF algorithms improve AF speed and with full-time manual focus override allows precise manual focus even in AF mode.
  • Uses optics designed to take full advantage of the small image circle and short back focus in EF-S lenses.
  • Circular aperture diaphragm produces brilliant out-of-focus characteristics

 

Specifications

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)
Performance
Focal Length 17 – 55mm Comparable APS-C 1.6x Focal Length: 27.2 – 88 mm
Aperture Maximum: f/2.8 Minimum: f/22
Camera Mount Type Canon EF-S
Format Compatibility Canon (APS-C)
Angle of View 78° 30′ – 27° 50′
Minimum Focus Distance 1.2′ (36.58 cm)
Magnification 0.17x
Maximum Reproduction Ratio 1:6
Elements/Groups 19/12
Diaphragm Blades 7
Features
Image Stabilization Yes
Autofocus Yes
Tripod Collar No
Physical
Filter Thread Front:77 mm
Dimensions (DxL) Approx. 3.3 x 4.4″ (8.38 x 11.18 cm)
Weight 22.75 oz (645 g)
Packaging Info
Package Weight 2.0 lb
Box Dimensions (LxWxH) 7.0 x 4.75 x 4.5″
Weight 2 lbs
Dimensions 7 x 4.75 x 4.5 in

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