Canon EF-S 17-55mm: $950

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.

Canon EF-S 17-55 mm F2.8G IS specifications

Image size
APS-C

35mm film equivalent focal length (mm)
27-88

Angle of view (horizontal, vertical, diagonal)
68º 40' - 23º 20',

48º - 15º 40',

78º 30' - 27º 50'

Lens construction (elements/groups)
19-Dec

No. of diaphragm blades
7

Minimum aperture
22

Closest focussing distance (m)
0.35

Maximum magnification (x)
0.17 (at 55mm)

Distance information
Yes

Image stabilizer
3-stops

AF actuator
Ring USM²

Filter diameter (mm)
77

Max. diameter x length (mm)
83.5 x 110.6

Weight (g)
645

Magnification with Extension Tube EF12 II
0.45-0.231

Magnification with Extension Tube EF25 II
1.71-0.51

Lens hood
EW-83J

Soft case
LP1219

G.F. Holder III (hood III*)
NC

G.F. Holder IV (hood IV*)
0

Extenders EF1.4x II and EF2x II
Not compatible