Sigma 28-105mm f/2.8-4 Aspherical IF

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Lens Specifications
Name Sigma 28-105mm f/2.8-4 Aspherical IF
Image Circle 35mm
Type Standard Zoom
Focal Length 28 - 105mm
APS Equivalent 1.5x: 42 - 157.5mm; 1.6x: 44.8 - 168mm
Max Aperture f/2.8 - 4
Min Aperture f/22
Diaphragm Blades 8
Lens Construction 12 elements in 11 groups, including 1 aspherical element
Diagonal Angle of View(Based on image circle) 75.4 to 23.3 degrees
Focus Details Internal
Front Element Rotation No
Zoom System Rotary
Closest Focus 50cm / 19.7 in.
Magnification Ratio 0.18x / 1:5.5
Filter Size 62mm
Dimensions(Length x Diameter) 79.5mm x 77mm / 3.1 in. x 3.0 in.
Weight 405g / 14.3 oz
Notes Available AF Mounts: Sigma, Canon, Nikon, Minolta, Pentax
Typical Online Price US$199.99