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Tamron's SP AF17-50mm F/2.8 XR Di II VC LD Aspherical (IF) is a high-speed, wide-to-moderate-telephoto zoom lens designed for Canon DSLR cameras with smaller sensors. It covers the very popular 17-50mm focal length Range (equivalent to 26-78mm in the full-frame 35mm format) making it extremely versatile. Tamron's Vibration Compensation (VC) mechanism minimizes the effects of handheld camera shake (up to 4-stops), providing a means to great low-light shooting.
The lens delivers impressive sharpness and striking contrast over its entire focal length and aperture Range. A maximum aperture of f/2.8 delivers images enhanced by shallow depth-of-field, and smooth, natural transitions in out-of-focus areas of the image. Additionally, this lens carries a 6-Year Tamron Limited Warranty (U.S.A. only)
Di II Lenses are designed for exclusive use on digital cameras with smaller-size imagers. These lenses are not designed for conventional cameras or digital cameras with image sensors larger than APS-C size (24mm x 16mm).
| Focal Length | 17 to 50mm (35mm Equivalent Focal Length: 27.2 to 80mm) |
| Maximum Aperture | f/2.8 |
| Minimum Aperture | f/32 |
| Lens Mount | Canon EF-S |
| format Compatibility | APS-C |
| Angle of View | 78° to 31° |
| Minimum Focus Distance | 11.4" / 28.96 cm |
| Maximum Magnification | 0.2x |
| Optical Design | 19 Elements in 14 Groups |
| Diaphragm Blades | 7 |
| Focus Type | Autofocus |
| Image Stabilization | Yes |
| Filter Size | 72 mm (Front) |
| Dimensions (ø x L) | 3.13 x 3.7" / 7.95 x 9.4 cm |
| Weight | 1.25 lb / 570 g |