Tamron 17-50mm f/2.8 XR Di II VC LD Aspherical IF SP AF

Lens Reviews / Tamron Lenses i Lab tested
Lens Specifications
Name Tamron SP AF 17-50mm ƒ/2.8 XR Di II VC LD Aspherical IF
Image Circle APS-C
Type Standard Zoom
Focal Length 17 - 50mm
APS Equivalent 1.5x: 25.5 - 75mm; 1.6x: 27.2 - 80mm
Max Aperture ƒ/2.8
Min Aperture ƒ/32
Diaphragm Blades 7 (rounded)
Lens Construction 19 elements in 14 groups, including Low Dispersion and Aspherical elements
Diagonal Angle of View(Based on image circle) 78.8 to 31.2 degrees
Focus Details Internal, with built-in focus motor
Front Element Rotation No
Zoom System Rotary
Closest Focus 0.29m / 11.4 in.
Magnification Ratio 0.21x / 1:4.8
Filter Size 72mm
Dimensions(Length x Diameter) 94.5mm x 79.6mm / 3.7 in. x 3.1 in.
Weight 570g / 20.2 oz
Notes Vibration Compensation (VC) Image Stabilization; Available AF mounts: Canon, Nikon; Includes petal type lens hood.
Typical Online Price US$650