Tamron AFA010C700 28-300mm F/3.5-6.3 Di VC PZD is Zoom Lens for Canon EF Cameras

Aperture Range: f/3.5-6.3 to f/22-40
Four Low Dispersion Glass Elements
Three Molded-Glass Aspherical Elements
One Hybrid Aspherical Element
One Extra Refractive Element
One Ultra-Extra Refractive Element
Piezo Drive Autofocus System
Minimum Focus Distance: 19.3″