Sigma 15-30mm f/3.5-4.5 EX DG Aspherical

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Lens Specifications
Name Sigma 15-30mm f/3.5-4.5 EX DG Aspherical
Image Circle 35mm
Type Wide Zoom
Focal Length 15 - 30mm
APS Equivalent 1.5x: 22.5 - 45mm; 1.6x: 24 - 48mm
Max Aperture f/3.5 - 4.5
Min Aperture f/22
Diaphragm Blades 8
Lens Construction 17 elements in 13 groups, including 2 aspherical elements
Diagonal Angle of View(Based on image circle) 110.5 to 71.6 degrees
Focus Details Internal Focus with Dual Focus mechanism
Front Element Rotation No
Zoom System Rotary
Closest Focus 30cm / 11.8 in.
Magnification Ratio 0.17x / 1:6
Filter Size Rear (Gelatin Filter)
Dimensions(Length x Diameter) 132.5mm x 87mm / 5.1 in. x 3.4 in.
Weight 615g / 21.8 oz
Notes Available AF Mounts: Sigma, Canon, Nikon, Minolta, Pentax
Typical Online Price US$499.99