Sigma 18-50mm f/2.8 EX DC

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Lens Specifications
Name Sigma 18-50mm f/2.8 EX DC
Image Circle APS-C
Type Standard Zoom
Focal Length 18 - 50mm
APS Equivalent 1.5x: 27 - 75mm; 1.6x: 28.8 - 80mm
Max Aperture f/2.8
Min Aperture f/22
Diaphragm Blades 7
Lens Construction 15 elements in 13 groups, including two aspherical elements and one Special Low Dispersion (SLD) lens
Diagonal Angle of View(Based on image circle) 69.3 to 27.9 degrees
Focus Details Internal focusing system
Front Element Rotation No
Zoom System Rotary, non-telescoping
Closest Focus 28cm / 11 in.
Magnification Ratio 0.2x / 1:5
Filter Size 67mm
Dimensions(Length x Diameter) 84.1mm x 74.1mm / 3.3 in. x 2.9 in.
Weight 445g / 15.7 oz
Notes Available AF Mounts: Sigma, Canon, Nikon, Minolta, Pentax, Four-Thirds
Typical Online Price US$499.99