Tamron -A16 SP AF17-50 mm F/2.8 Di II LD Aspherical (IF) w/ hood

In addition, portrait shots are made beautiful with the natural out-of-focus effect characteristic provided by the fast F/2.8 aperture. The SP AF17-50mm F/2.8 is a lightweight, compact, fast standard zoom lens designed exclusively for digital SLR cameras, expanding the product concept of the popular SP AF28-75mm F/2.8 zoom lens. Works with Canon EOS Digital Rebel XT, XTi, XS, XSi , K , G , X, 1D, 1Ds, 5D, 10D, 20D, 30D, 40D, 50D,400D, 350D, 300D, 300, 620 and all other similar models. Maximum Aperture: F/2.8, Minimum Aperture: F/32, 13/16 Lens Construction, Weight: 430g, Minimum Focusing Distance: 0.27m, 7 Circular Apertures.