6/22/2006 Sigma Corporation - This large aperture telephoto zoom lens has a minimum focusing distance of 100cm (39.4") throughout the entire zoom range. It is very convenient for close-up photography. This lens uses two ELD (Extraordinary Low Dispersion) glasses and two SLD (Special Low Dispersion) glasses for utmost correction against chromatic aberrations. This lensí super multi layer lens coating reduce flare and ghost, which is a common problem with digital cameras. This lens incorporates HSM (Hyper Sonic Motor), which ensures a quiet and high-speed AF. The lens design incorporates an inner focusing and inner zooming systems. The overall length of the lens does not change during focusing and zooming, ensuring convenient handling. When this lens is used with the 1.4x EX DG APO or 2x EX DG APO Tele Converters (optional), it becomes a 98-280mm F4 AF telephoto zoom lens or a 140-400mm F5.6 AF telephoto zoom lens respectively.
- Minimum focusing distance of 100cm, maximum magnification of 1:3.5.
- The super multi layer lens coating and lens design reduce flare and ghost.
- ELD and SLD lenses for correction of aberrations.
- HSM ensures a quiet and high-speed AF
Minimum Aperture: F22
Lens Construction: 18 Elements in15 Groups
Angle of View: 34.3 - 12.3 degrees
Number of Diaphragm Blades: 9 Blades
Minimum Focusing Distance: 100cm/39.4 in.
Maximum Magnification: 1:3.5
Filter Size: 77mm
Dimensions: Diameter 86.6mm X Length 184.4mm; 3.4 in. X 7.3 in.
Weight: 1,380g/48.7 oz.