The SP AF17-50mm F/2.8 XR Di II VC covers the heavily-used 17-50mm focal distance range (angle of view equivalent to 26-78mm when converted to the full frame format) making it an extremely versatile, high-performance zoom lens. Achieving sharpness and striking contrast, the lens produces beautiful images that are enhanced by the shallow depth-of-field afforded by the maximum aperture of F/2.8 and enriches the user's range of photographic expression. The new lens is equipped with Tamron's proprietary Vibration Compensation (VC) image stabilization mechanism, which provides more opportunities for hand-held photography, such as low-lit conditions like evening, night scenes and indoors, leading to a dramatically enhanced level of photographic freedom.

Features

• Compact Fast Zoom with VC
• Fast Constant F/2.8 Aperture
• 26-78mm equivalent* on APS-C DSLRs *Tamron uses 1.55X as an average conversion to full frame
• For use on APS-C size DSLR cameras
• 11.4 inch MFD / 1:4.8 Max. Mag. Ratio
• Internal Focusing

Specifications

• Model Name B005
• Focal Length 17 ? 50mm
• Format size APS-C
• Maximum Aperture F/2.8
• Minimum Aperture F/32
• Diagonal Angle of View 78 degres 45'- 31 degrees 11'
• Lens Construction 19 elements, 14 groups
• Minimum Focus Distance 11.4 inch (0.29m)
• Maximum Mag. Ratio 1:4.8
• Filter Diameter 72mm
• Overall Length 3.7 inch (94.5mm)**
• Maximum Diameter 3.13 inch (79.6mm)
• Weight 20.15 oz. (570g)**
• Diaphragm Blades 7
• Standard Accessory Flower-shaped lens hood
• Compatible Mount Canon and Nikon
  (Built-In-Motor for use on all Nikon DSLR cameras)
  * Values given are for Canon AF mount