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 digital SLR 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.
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).
|Construction||14 Groups/ 19 Elements |
Diaphragm: 7 blades
|Angle of view||78° at 45' - 31° at 11', (APS-C size equivalent)|
|F stop range||2.8- 32|
|Closest Focusing Distance||11.4in. (0.29m)|
|Dimensions (Length x Diameter)||94.5 x D 79.6 mm / 3.7" x 3.13"|
|Weight||20.15 oz / 570g appx.|