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To meet user demands for a fast EF-S zoom lens,
Canon has specially designed a new 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.
Focal Length & Maximum Aperture
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17-55mm 1:2.8
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Lens Construction
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19 elements in 12 groups
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Diagonal Angle of View
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78°30' - 27°50'
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Focus Adjustment
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AF with full-time manual
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Closest Focusing Distance
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1.15 ft. / 0.35m
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Zoom System
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5-group helical zoom (front group moves: 27mm)
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Filter Size
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77mm
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Max. Diameter x Length, Weight
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3.3 in. x 4.4 in., 22.8 oz. / 83.5mm x 110.6mm, 645g (lens only)
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Note: Hood: EW-83J (bayonet, petal form, two-claw removable hood; attachable in reverse)
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