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

Lens Reviews / Tamron Lenses i Lab tested
Lens Specifications
Name Tamron SP AF 17-50mm f/2.8 XR Di II 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 f/2.8
Min Aperture f/32
Diaphragm Blades 7
Lens Construction 16 elements in 13 groups, including Low Dispersion and Aspherical elements
Diagonal Angle of View(Based on image circle) 78.8 to 31.2 degrees
Focus Details Internal
Front Element Rotation No
Zoom System Rotary
Closest Focus 0.27m / 10.6 in.
Magnification Ratio 0.22x / 1:4.5
Filter Size 67mm
Dimensions(Length x Diameter) 81.7mm x 74mm / 3.2 in. x 2.9 in.
Weight 398g / 14 oz
Notes Available AF mounts: Canon, Konica Minolta, Nikon, Pentax; Includes petal type lens hood.
Typical Online Price US$450