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Press Release - A compact zoom lens with large aperture from 24mm super-wide-angle(2004.3.16)
24-60mmF2.8 EX DG
Sigma introduces the new 24-60mm F2.8 EX DG zoom lens at Photo Expo 2004. From super-wide-angle of 24mm this lens has a very compact design as well as a large-aperture. By effective arrangement of Special Low Dispersion (SLD) and aspherical glass elements, this lens has compact dimensions of 83.6mm maximum diameter, and 87mm length. It is capable of taking pictures from a close distance, minimum focusing distance is 38cm at all focal lengths, and has a maximum magnification ratio of 1:5.8. Two Special Low Dispersion (SLD) glass elements are provided for effective compensation of color aberration, which is a common problem with super-wide angle lenses. One piece of Glass Mold Aspherical and three pieces of Hybrid Aspherical, total four pieces of aspherical lenses offer excellent correction for distortion as well as all types of aberration.
The design concept of this lens is especially suitable for the characteristics of Digital SLR Cameras. The high performance inner focus system is particularly suitable for using circular polarizing filters and a petal-type hood as the front of the lens does not rotate. This lens is also equipped with Zoom Lock Switch that eliminates "Zoom Creep". This remarkably compact high performance zoom lens is ideally suited for traveling.
Corresponding AF Mount
SIGMA, CANON, NIKON (D), MINOLTA (D), and PENTAX
SIGMA 24-60mm EX DG SPECIFICATIONS
*Focal Length :24-60mm *Minimum Aperture :F22 *Lens Construction :16 Elements in 15Groups *Focusing System : Inner Focus *Angle of View :84.1degree -39.6degree *Number of Diaphragm Blades :9pcs *Minimum Focusing Distance : 38cm (14.9in.) *Maximum Magnification : 1:5.8 *Filter Size : 77mm *Lens Hood :Petal Hood *Dimensions :Diameter 83.6mm (32.9in.)X Length 87mm (34.2in.) *Weight :Not determined
Posted by Darren in our Miscellaneous category on March 16, 2004